[svn-r23473] Update the VOL plugin callbacks with better async I/O support:

 - change hid_t req in callbacks to void **req
 - change all callbacks to accept dxpl_ids (except dataset write and read which already do)
 - update all the private and public VL routines to accept a dxpl_id and event queue id
 - Add an async class for the VOL plugin with cancel, test, and wait request operations
 - add the external VOL log plugin test to the examples directory

NOTE that async operations are still not provided by the HDF5 API, so
all event queue IDs and requests passed to all plugins are NULL for
now.

Tested on jam.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/H5Tprivate.h b/src/H5Tprivate.h
index 7a48bd5..217a0d6 100644
--- a/src/H5Tprivate.h
+++ b/src/H5Tprivate.h
@@ -141,7 +141,7 @@ H5_DLL herr_t H5T_set_latest_version(H5T_t *dt);
 H5_DLL herr_t H5T_patch_file(H5T_t *dt, H5F_t *f);
 H5_DLL htri_t H5T_is_variable_str(const H5T_t *dt);
 H5_DLL void * H5T_get_named_type(const H5T_t *dt);
-H5_DLL hid_t H5VL_create_datatype(void *dt_obj, H5VL_t *vol_plugin, hbool_t app_ref, hid_t req);
+H5_DLL hid_t H5VL_create_datatype(void *dt_obj, H5VL_t *vol_plugin, hbool_t app_ref);
 H5_DLL herr_t H5T_set_vol_object(H5T_t *type, void *vol_obj);
 
 /* Reference specific functions */