[svn-r22115] Add 2 new API routines to set/unset file atomicity for files opened with the MPI-IO VFD

Add test cases for these two routines
Jira issue HDFFV-7961

1 files changed, 82 insertions, 0 deletions

diff --git a/src/H5Fmpi.c b/src/H5Fmpi.c
index 4fd04f6..0f612be 100644
--- a/src/H5Fmpi.c
+++ b/src/H5Fmpi.c
@@ -38,6 +38,8 @@
 #include "H5Eprivate.h"		/* Error handling		  	*/
 #include "H5Fpkg.h"             /* File access				*/
 #include "H5FDmpi.h"            /* MPI-based file drivers		*/
+#include "H5FDprivate.h"	/* File drivers				*/
+#include "H5Iprivate.h"		/* IDs			  		*/
 
 
 /****************/
@@ -177,5 +179,85 @@ H5F_mpi_get_size(const H5F_t *f)
 done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5F_mpi_get_size() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Fset_mpi_atomicity
+ *
+ * Purpose:	Sets the atomicity mode
+ *
+ * Return:	Success:	Non-negative
+ *
+ * 		Failure:	Negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		Feb 14, 2012
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Fset_mpi_atomicity(hid_t file_id, hbool_t flag)
+{
+    H5F_t       *file;
+    herr_t       ret_value = SUCCEED;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "iMi", file_id, flag);
+
+    /* Check args */
+    if(NULL == (file = (H5F_t *)H5I_object_verify(file_id, H5I_FILE)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a file ID")
+
+    /* Check VFD */
+    if(!IS_H5FD_MPIO(file))
+        HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "incorrect VFL driver, must use MPI-I/O driver")
+
+    /* set atomicity value */
+    if (H5FD_set_mpio_atomicity (file->shared->lf, flag) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't set atomicity flag")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Fget_mpi_atomicity
+ *
+ * Purpose:	Returns the atomicity mode
+ *
+ * Return:	Success:	Non-negative
+ *
+ * 		Failure:	Negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		Feb 14, 2012
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Fget_mpi_atomicity(hid_t file_id, hbool_t *flag)
+{
+    H5F_t      *file;
+    herr_t     ret_value = SUCCEED;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "iMi", file_id, flag);
+
+    /* Check args */
+    if(NULL == (file = (H5F_t *)H5I_object_verify(file_id, H5I_FILE)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a file ID")
+
+    /* Check VFD */
+    if(!IS_H5FD_MPIO(file))
+        HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "incorrect VFL driver, must use MPI-I/O driver")
+
+    /* get atomicity value */
+    if (H5FD_get_mpio_atomicity (file->shared->lf, flag) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get atomicity flag")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+}
 #endif /* H5_HAVE_PARALLEL */