[svn-r343] First implementation of collective access support.

H5D.c
    Changed H5D_write and H5D_read to recognize collective transfer
    requests.  Current algorithm puts the xfer-mode in the file->mpio
    structure.  Not thread safe.  Need to revise it to pass transfer
    parameter as a function parameters to the lower levels.

H5Dprivate.h
H5Dpublic.h
    Added xfer_mode to the transfer property list structure.
    Added defination of transfer modes, H5D_XFER_INDEPENDENT and
    H5D_XFER_COLLECTIVE.

H5Farray.c
    Added code to handle collective access requests.  Currently
    works for one contiguous block at a time.  Need to revise
    it with the MPIO low level calls to combine all blocks as
    one truely collective call.

H5P.c
H5Ppublic.h
    Added H5Pset_xfer and H5Pget_xfer routines that can set and get
    the transfer mode of a data transfer property list.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/H5Dpublic.h b/src/H5Dpublic.h
index bfaacd2..634b5b9 100644
--- a/src/H5Dpublic.h
+++ b/src/H5Dpublic.h
@@ -31,6 +31,14 @@ typedef enum H5D_layout_t {
     H5D_NLAYOUTS         = 3    /*this one must be last!                     */
 } H5D_layout_t;
 
+#ifdef HAVE_PARALLEL
+/* Values for the data transfer property */
+typedef enum H5D_transfer_t {
+    H5D_XFER_INDEPENDENT, 	/*Independent data transfer	*/
+    H5D_XFER_COLLECTIVE  	/*Collective data transfer	*/
+} H5D_transfer_t;
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif