Changeset 20260 for trunk/psModules/src/config/pmConfig.c

Timestamp:

Oct 18, 2008, 9:04:26 AM (18 years ago)

Author:

eugene

Message:

adding 5 re-tries to checkPath

File:

• trunk/psModules/src/config/pmConfig.c (modified) (2 diffs)

trunk/psModules/src/config/pmConfig.c

@@ -1721 +1721 @@
     PS_ASSERT_PTR_NON_NULL(filename, false);
 
-    if (access(filename, R_OK) == 0) {
-        // file already exists
-        if (trunc) {
-            if(truncate(filename, 0) != 0) {
-                psError(PS_ERR_IO, true, "Failed to truncate file, %s\n", filename);
-                return false;
-            }
-        }
-    } else {
+    // re-try access up to 5 times (1.25sec) to reduce NFS lurches
+    for (int i = 0; i < 5; i++) {
+        if (access(filename, R_OK) == 0) {
+            // file already exists
+            if (trunc) {
+                if(truncate(filename, 0) != 0) {
+                    psError(PS_ERR_IO, true, "Failed to truncate file, %s\n", filename);
+                    return false;
+                }
+            }
+            return true;
+        } 
+
         // file does not exist
         if (create) {
             int fd = open(filename, O_WRONLY|O_CREAT, 0666);
             if (fd == 0) {
-                psError(PS_ERR_IO, true, "Failed to close file, %s\n", filename);
+                psError(PS_ERR_IO, true, "Failed to open & create file, %s\n", filename);
                 return false;
             }
@@ -1741 +1745 @@
                 return false;
             }
-        } else {
-            // if the file does not exist and create isn't set, then we
-            // should puke
-            psError(PS_ERR_IO, true, "Unable to access file %s", filename);
-            return false;
-        }
-    }
-
-    return true;
-}
-
+            return true;
+        }
+        usleep (250000);
+    }
+
+    // We've tried 5 times to access the file; give up and report a problem.  If the file does
+    // not exist and create isn't set, then we should puke
+    psError(PS_ERR_IO, true, "Unable to access file %s", filename);
+    return false;
+}