[svn-r8126] Purpose:

    Bug fix/optimization

Description:
    Address slowdown in MPI-I/O file metadata operations that was introduced
mid-stream.  We now _require_ a POSIX compliant parallel file system for the
MPI-I/O file driver (as well as for the MPI-POSIX file driver).
    Also optimized file open operation when the file is being created by
reducing the number of collective & syncronizing calls.
    Additionally, refactor the MPI routines into a common place, eliminating
duplicated code.

Platforms tested:
    FreeBSD 4.9 (sleipnir) w/parallel
    h5committest

1 files changed, 3 insertions, 8 deletions

diff --git a/src/H5FDprivate.h b/src/H5FDprivate.h
index 2dacf25..064d337 100644
--- a/src/H5FDprivate.h
+++ b/src/H5FDprivate.h
@@ -25,19 +25,13 @@
 /* Private headers needed by this file */
 
 /*
- * The MPIO, MPIPOSIX, & FPHDF5 drivers are needed because there are
+ * The MPI drivers are needed because there are
  * places where we check for things that aren't handled by these drivers.
  */
-#include "H5FDfphdf5.h"
-#include "H5FDmpio.h"
-#include "H5FDmpiposix.h"
+#include "H5FDmpi.h"            /* MPI-based file drivers		*/
 
 /* Macros */
 
-/* Single macro to check for all file drivers that use MPI */
-#define IS_H5FD_MPI(file)  \
-        (IS_H5FD_MPIO(file) || IS_H5FD_MPIPOSIX(file) || IS_H5FD_FPHDF5(file))
-
 /* Prototypes */
 H5_DLL int H5FD_term_interface(void);
 H5_DLL H5FD_class_t *H5FD_get_class(hid_t id);
@@ -51,6 +45,7 @@ H5_DLL herr_t H5FD_fapl_close(hid_t driver_id, void *fapl);
 H5_DLL herr_t H5FD_dxpl_open(struct H5P_genplist_t *plist, hid_t driver_id, const void *driver_info);
 H5_DLL herr_t H5FD_dxpl_copy(hid_t driver_id, const void *dxpl, void **copied_dxpl);
 H5_DLL herr_t H5FD_dxpl_close(hid_t driver_id, void *dxpl);
+H5_DLL hid_t H5FD_register(const void *cls, size_t size);
 H5_DLL H5FD_t *H5FD_open(const char *name, unsigned flags, hid_t fapl_id,
 		  haddr_t maxaddr);
 H5_DLL herr_t H5FD_close(H5FD_t *file);