From 4d3aa1df919cc19d1bf2f66e5272d9ecda95d463 Mon Sep 17 00:00:00 2001
From: Alex Schmidt <alex@treefish.org>
Date: Tue, 12 Feb 2013 09:55:30 +0100
Subject: [PATCH] ...

---
 writeout.cpp | 26 +++++++++++++++++++++++---
 writeout.h   |  1 +
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/writeout.cpp b/writeout.cpp
index 5a68fec..81f1e02 100644
--- a/writeout.cpp
+++ b/writeout.cpp
@@ -13,6 +13,24 @@
 
 using namespace std;
 
+bool writeout::DirectoryExists( const char* pzPath )
+{
+    if ( pzPath == NULL) return false;
+
+    DIR *pDir;
+    bool bExists = false;
+
+    pDir = opendir (pzPath);
+
+    if (pDir != NULL)
+    {
+        bExists = true;    
+        (void) closedir (pDir);
+    }
+
+    return bExists;
+}
+
 string writeout::tstamp(const long& timestamp)
 {
   stringstream sstr;
@@ -24,14 +42,16 @@ string writeout::tstamp(const long& timestamp)
 writeout::writeout(const string& wdir, const string& signature, 
 		   const int& rank, const int& procs, const long& timestamp)
 {
-  struct stat sb;
-
   if(wdir != ""){
     numprocs = procs;
     sprintf(cRank, "%d", rank);
     fulldir = wdir + "/" + tstamp(timestamp) + "_" + signature + ".tmp";
 
-    mkdir( fulldir.c_str(), 0775);
+    for(int itry=0; itry<100 && (!DirectoryExists(fulldir.c_str())); itry++) {
+      if (rank==0) 
+	mkdir( fulldir.c_str(), 0775);
+      sleep(1);
+    }
 
     if(rank>0) of.open( (fulldir + "/rank" + cRank + ".tmp").c_str() );
     else of.open( (fulldir + "/" + signature + ".dat").c_str() );
diff --git a/writeout.h b/writeout.h
index e7c3ea1..6c04ace 100644
--- a/writeout.h
+++ b/writeout.h
@@ -26,6 +26,7 @@ class writeout
   int numprocs;
   string getdatfile();
   string timestring();
+  static bool DirectoryExists(const char* pzPath);
 };
 
 #endif
-- 
2.39.5