From bbaf4fb19b452e093bde1616df351dfa34f30840 Mon Sep 17 00:00:00 2001
From: Mohamad Chaarawi <chaarawi@hdfgroup.org>
Date: Fri, 27 Jul 2012 08:38:54 -0500
Subject: [svn-r22612] add enum value for the VL class

---
 src/H5VLdummy.c  | 1 +
 src/H5VLnative.c | 1 +
 src/H5VLpublic.h | 7 +++++++
 3 files changed, 9 insertions(+)

diff --git a/src/H5VLdummy.c b/src/H5VLdummy.c
index eea2263..bec0aa3 100644
--- a/src/H5VLdummy.c
+++ b/src/H5VLdummy.c
@@ -60,6 +60,7 @@ static herr_t H5VL_dummy_file_close(hid_t fid, hid_t req);
 static hid_t  H5VL_dummy_file_create(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, hid_t req);
 
 H5VL_class_t H5VL_dummy_g = {
+    DUMMY,
     "dummy",					/* name */
     NULL,
     H5VL_dummy_term,                           /*terminate */
diff --git a/src/H5VLnative.c b/src/H5VLnative.c
index c9560c8..2903fc4 100644
--- a/src/H5VLnative.c
+++ b/src/H5VLnative.c
@@ -129,6 +129,7 @@ static herr_t H5VL_native_object_optional(void *obj, H5VL_loc_params_t loc_param
 static herr_t H5VL_native_object_close(void *obj, H5VL_loc_params_t loc_params, hid_t req);
 
 static H5VL_class_t H5VL_native_g = {
+    NATIVE,
     "native",					/* name */
     NULL,                                       /* initialize */
     NULL,                                       /* terminate */
diff --git a/src/H5VLpublic.h b/src/H5VLpublic.h
index 75a014b..670a5b7 100644
--- a/src/H5VLpublic.h
+++ b/src/H5VLpublic.h
@@ -283,8 +283,15 @@ typedef struct H5VL_object_class_t {
     herr_t (*close) (void *obj, H5VL_loc_params_t loc_params, hid_t req);
 } H5VL_object_class_t;
 
+/* enum value to identify the class of a VOL plugin (mostly for comparison purposes */
+typedef enum H5VL_class_value_t {
+    NATIVE = 0,
+    DUMMY = 1
+} H5VL_class_value_t;
+
 /* Class information for each VOL driver */
 typedef struct H5VL_class_t {
+    H5VL_class_value_t value;
     const char *name;
     herr_t  (*initialize)(void);
     herr_t  (*terminate)(void);
-- 
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