Throw on failure in gmx_file_rename

[alexxy/gromacs.git] / src / gromacs / mdlib / mdoutf.cpp

diff --git a/src/gromacs/mdlib/mdoutf.cpp b/src/gromacs/mdlib/mdoutf.cpp
index ecf83d907e7e1780f1b009454f4bafd1cb06aa47..5384aeaa83f58cfe92668d130890149c7ceb7d3e 100644 (file)
--- a/src/gromacs/mdlib/mdoutf.cpp
+++ b/src/gromacs/mdlib/mdoutf.cpp
@@ -464,9 +464,15 @@ static void write_checkpoint(const char*                     fn,
         /* Rename the checkpoint file from the temporary to the final name */
         mpiBarrierBeforeRename(applyMpiBarrierBeforeRename, mpiBarrierCommunicator);
 
-        if (gmx_file_rename(fntemp, fn) != 0)
+        try
         {
-            gmx_file("Cannot rename checkpoint file; maybe you are out of disk space?");
+            gmx_file_rename(fntemp, fn);
+        }
+        catch (gmx::FileIOError const&)
+        {
+            // In this case we can be more helpful than the generic message from gmx_file_rename
+            GMX_THROW(gmx::FileIOError(
+                    "Cannot rename checkpoint file; maybe you are out of disk space?"));
         }
     }
 #endif /* GMX_NO_RENAME */