Brings H5Z and H5PL packages in sync with VOL integration branch.

7 files changed, 147 insertions, 127 deletions

diff --git a/src/H5PLint.c b/src/H5PLint.c
index c887f86..b190746 100644
--- a/src/H5PLint.c
+++ b/src/H5PLint.c
@@ -235,11 +235,11 @@ done:
  *-------------------------------------------------------------------------
  */
 const void *
-H5PL_load(H5PL_type_t type, int id)
+H5PL_load(H5PL_type_t type, H5PL_key_t key)
 {
-    H5PL_search_params_t    search_params;
+    H5PL_search_params_t    search_params;          /* Plugin search parameters     */
     hbool_t                 found = FALSE;          /* Whether the plugin was found */
-    const void             *plugin_info = NULL;
+    const void             *plugin_info = NULL;     /* Information from the plugin  */
     const void             *ret_value = NULL;
 
     FUNC_ENTER_NOAPI(NULL)
@@ -248,18 +248,17 @@ H5PL_load(H5PL_type_t type, int id)
     switch (type) {
         case H5PL_TYPE_FILTER:
             if ((H5PL_plugin_control_mask_g & H5PL_FILTER_PLUGIN) == 0)
-                HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin filter '%d' is not available", id)
+                HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "filter plugins disabled")
             break;
-
         case H5PL_TYPE_ERROR:
         case H5PL_TYPE_NONE:
         default:
-            HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin '%d' is not valid", id)
+            HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "Invalid plugin type specified")
     }
 
     /* Set up the search parameters */
     search_params.type = type;
-    search_params.id = id;
+    search_params.key.id = key.id;
 
     /* Search in the table of already loaded plugin libraries */
     if(H5PL__find_plugin_in_cache(&search_params, &found, &plugin_info) < 0)
@@ -304,11 +303,11 @@ done:
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wpedantic"
 herr_t
-H5PL__open(const char *path, H5PL_type_t type, int id, hbool_t *success, const void **plugin_info)
+H5PL__open(const char *path, H5PL_type_t type, H5PL_key_t key, hbool_t *success, const void **plugin_info)
 {
     H5PL_HANDLE             handle = NULL;
     H5PL_get_plugin_info_t  get_plugin_info = NULL;
-    htri_t                  ret_value = SUCCEED;
+    herr_t                  ret_value = SUCCEED;
 
     FUNC_ENTER_PACKAGE
 
@@ -326,35 +325,46 @@ H5PL__open(const char *path, H5PL_type_t type, int id, hbool_t *success, const v
      */
     if (NULL == (handle = H5PL_OPEN_DLIB(path))) {
         H5PL_CLR_ERROR; /* clear error */
-        HGOTO_DONE(SUCCEED);
+        HGOTO_DONE(SUCCEED)
     }
 
     /* Return a handle for the function H5PLget_plugin_info in the dynamic library.
      * The plugin library is suppose to define this function.
      */
-    if (NULL != (get_plugin_info = (H5PL_get_plugin_info_t)H5PL_GET_LIB_FUNC(handle, "H5PLget_plugin_info"))) {
-
-        const H5Z_class2_t *info;
+    if (NULL == (get_plugin_info = (H5PL_get_plugin_info_t)H5PL_GET_LIB_FUNC(handle, "H5PLget_plugin_info")))
+        HGOTO_DONE(SUCCEED)
 
-        /* Get the plugin info */
-        if (NULL == (info = (const H5Z_class2_t *)(*get_plugin_info)()))
-            HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "can't get plugin info")
+    /* Get the plugin information */
+    switch (type) {
+        case H5PL_TYPE_FILTER:
+        {
+            const H5Z_class2_t *filter_info;
 
-        /* Check if the filter IDs match */
-        if (info->id == id) {
+            /* Get the plugin info */
+            if (NULL == (filter_info = (const H5Z_class2_t *)(*get_plugin_info)()))
+                HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "can't get filter info from plugin")
 
-            /* Store the plugin in the cache */
-            if (H5PL__add_plugin(type, id, handle))
-                HGOTO_ERROR(H5E_PLUGIN, H5E_CANTINSERT, FAIL, "unable to add new plugin to plugin cache")
+            /* If the filter IDs match, we're done. Set the output parameters. */
+            if (filter_info->id == key.id) {
+                *plugin_info = (const void *)filter_info;
+                *success = TRUE;
+            }
 
-            /* Set output parameters */
-            *success = TRUE;
-            *plugin_info = (const void *)info;
+            break;
         }
-    }
+        case H5PL_TYPE_ERROR:
+        case H5PL_TYPE_NONE:
+        default:
+            HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "Invalid plugin type specified")
+    } /* end switch */
+
+    /* If we found the correct plugin, store it in the cache */
+    if (*success)
+        if (H5PL__add_plugin(type, key, handle))
+            HGOTO_ERROR(H5E_PLUGIN, H5E_CANTINSERT, FAIL, "unable to add new plugin to plugin cache")
 
 done:
-    if (!success && handle)
+    if (!(*success) && handle)
         if (H5PL__close(handle) < 0)
             HDONE_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library")
 
diff --git a/src/H5PLpath.c b/src/H5PLpath.c
index 435802a..d8e82f8 100644
--- a/src/H5PLpath.c
+++ b/src/H5PLpath.c
@@ -689,7 +689,7 @@ H5PL__find_plugin_in_path(const H5PL_search_params_t *search_params, hbool_t *fo
                 continue;
 
             /* attempt to open the dynamic library as a filter library */
-            if (H5PL__open(path, search_params->type, search_params->id, found, plugin_info) < 0)
+            if (H5PL__open(path, search_params->type, search_params->key, found, plugin_info) < 0)
                 HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in directory failed")
             if (*found)
                 HGOTO_DONE(SUCCEED)
@@ -755,7 +755,7 @@ H5PL__find_plugin_in_path(const H5PL_search_params_t *search_params, hbool_t *fo
                 continue;
 
             /* attempt to open the dynamic library as a filter library */
-            if (H5PL__open(path, search_params->type, search_params->id, found, plugin_info) < 0)
+            if (H5PL__open(path, search_params->type, search_params->search_key.id, found, plugin_info) < 0)
                 HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in directory failed")
             if (*found)
                 HGOTO_DONE(SUCCEED)
diff --git a/src/H5PLpkg.h b/src/H5PLpkg.h
index 0d1c271..dfaa4af 100644
--- a/src/H5PLpkg.h
+++ b/src/H5PLpkg.h
@@ -115,8 +115,8 @@
 
 /* Data used to search for plugins */
 typedef struct H5PL_search_params_t {
-    H5PL_type_t     type;
-    int             id;
+    H5PL_type_t         type;
+    H5PL_key_t          key;
 } H5PL_search_params_t;
 
 
@@ -134,13 +134,13 @@ H5_DLL herr_t H5PL__get_plugin_control_mask(unsigned int *mask /*out*/);
 H5_DLL herr_t H5PL__set_plugin_control_mask(unsigned int mask);
 
 /* Plugin search and manipulation */
-H5_DLL herr_t H5PL__open(const char *libname, H5PL_type_t type, int id, hbool_t *success /*out*/, const void **plugin_info /*out*/);
+H5_DLL herr_t H5PL__open(const char *libname, H5PL_type_t type, H5PL_key_t key, hbool_t *success /*out*/, const void **plugin_info /*out*/);
 H5_DLL herr_t H5PL__close(H5PL_HANDLE handle);
 
 /* Plugin cache calls */
 H5_DLL herr_t H5PL__create_plugin_cache(void);
 H5_DLL herr_t H5PL__close_plugin_cache(hbool_t *already_closed /*out*/);
-H5_DLL herr_t H5PL__add_plugin(H5PL_type_t type, int id, H5PL_HANDLE handle);
+H5_DLL herr_t H5PL__add_plugin(H5PL_type_t type, H5PL_key_t key, H5PL_HANDLE handle);
 H5_DLL herr_t H5PL__find_plugin_in_cache(const H5PL_search_params_t *search_params, hbool_t *found /*out*/, const void **plugin_info /*out*/);
 
 /* Plugin search path calls */
diff --git a/src/H5PLplugin_cache.c b/src/H5PLplugin_cache.c
index e483e01..e905ac2 100644
--- a/src/H5PLplugin_cache.c
+++ b/src/H5PLplugin_cache.c
@@ -56,9 +56,9 @@
 
 /* Type for the list of info for opened plugin libraries */
 typedef struct H5PL_plugin_t {
-    H5PL_type_t     type;           /* Plugin type          */
-    int             id;             /* ID for the plugin    */
-    H5PL_HANDLE     handle;         /* Plugin handle        */
+    H5PL_type_t     type;           /* Plugin type                          */
+    H5PL_key_t      key;            /* Unique key to identify the plugin    */
+    H5PL_HANDLE     handle;         /* Plugin handle                        */
 } H5PL_plugin_t;
 
 
@@ -209,14 +209,14 @@ done:
 /*-------------------------------------------------------------------------
  * Function:    H5PL__add_plugin
  *
- * Purpose:     Add a plugin to the plugin cached.
+ * Purpose:     Add a plugin to the plugin cache.
  *
  * Return:      SUCCEED/FAIL
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5PL__add_plugin(H5PL_type_t type, int id, H5PL_HANDLE handle)
+H5PL__add_plugin(H5PL_type_t type, H5PL_key_t key, H5PL_HANDLE handle)
 {
     herr_t      ret_value = SUCCEED;
 
@@ -229,7 +229,7 @@ H5PL__add_plugin(H5PL_type_t type, int id, H5PL_HANDLE handle)
 
     /* Store the plugin info and bump the # of plugins */
     H5PL_cache_g[H5PL_num_plugins_g].type       = type;
-    H5PL_cache_g[H5PL_num_plugins_g].id         = id;
+    H5PL_cache_g[H5PL_num_plugins_g].key        = key;
     H5PL_cache_g[H5PL_num_plugins_g].handle     = handle;
 
     H5PL_num_plugins_g++;
@@ -276,7 +276,7 @@ H5PL__find_plugin_in_cache(const H5PL_search_params_t *search_params, hbool_t *f
     for (u = 0; u < H5PL_num_plugins_g; u++) {
 
         /* If the plugin type (filter, etc.) and ID match, query the plugin for its info */
-        if ((search_params->type == (H5PL_cache_g[u]).type) && (search_params->id == (H5PL_cache_g[u]).id)) {
+        if ((search_params->type == (H5PL_cache_g[u]).type) && (search_params->key.id == (H5PL_cache_g[u]).key.id)) {
 
             H5PL_get_plugin_info_t      get_plugin_info_function;
             const H5Z_class2_t          *filter_info;
diff --git a/src/H5PLprivate.h b/src/H5PLprivate.h
index bc12e64..cc2e258 100644
--- a/src/H5PLprivate.h
+++ b/src/H5PLprivate.h
@@ -33,6 +33,11 @@
 /* Library Private Typedefs */
 /****************************/
 
+/* The key that will be used to find the plugin */
+typedef union H5PL_key_t {
+    int         id;         /* filters      */
+} H5PL_key_t;
+
 
 /*****************************/
 /* Library-private Variables */
@@ -44,7 +49,7 @@
 /***************************************/
 
 /* Internal API routines */
-H5_DLL const void *H5PL_load(H5PL_type_t plugin_type, int type_id);
+H5_DLL const void *H5PL_load(H5PL_type_t plugin_type, H5PL_key_t key);
 
 #endif /* _H5PLprivate_H */
 
diff --git a/src/H5PLpublic.h b/src/H5PLpublic.h
index 3b36ccd..fe5bdfb 100644
--- a/src/H5PLpublic.h
+++ b/src/H5PLpublic.h
@@ -30,9 +30,9 @@
 
 /* Plugin type used by the plugin library */
 typedef enum H5PL_type_t {
-    H5PL_TYPE_ERROR         = -1,   /* Error                    */
-    H5PL_TYPE_FILTER        = 0,    /* Filter                   */
-    H5PL_TYPE_NONE          = 1     /* This must be last!       */
+    H5PL_TYPE_ERROR         = -1,   /* Error                */
+    H5PL_TYPE_FILTER        =  0,   /* Filter               */
+    H5PL_TYPE_NONE          =  1    /* This must be last!   */
 } H5PL_type_t;
 
 /* Common dynamic plugin type flags used by the set/get_loading_state functions */
diff --git a/src/H5Z.c b/src/H5Z.c
index a9f7336..1e7cd79 100644
--- a/src/H5Z.c
+++ b/src/H5Z.c
@@ -86,24 +86,24 @@ H5Z__init_package(void)
     FUNC_ENTER_PACKAGE
 
     /* Internal filters */
-    if (H5Z_register (H5Z_SHUFFLE) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register shuffle filter")
-    if (H5Z_register (H5Z_FLETCHER32) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register fletcher32 filter")
-    if (H5Z_register (H5Z_NBIT) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register nbit filter")
-    if (H5Z_register (H5Z_SCALEOFFSET) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register scaleoffset filter")
+    if (H5Z_register(H5Z_SHUFFLE) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register shuffle filter")
+    if (H5Z_register(H5Z_FLETCHER32) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register fletcher32 filter")
+    if (H5Z_register(H5Z_NBIT) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register nbit filter")
+    if (H5Z_register(H5Z_SCALEOFFSET) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register scaleoffset filter")
 
     /* External filters */
 #ifdef H5_HAVE_FILTER_DEFLATE
-    if (H5Z_register (H5Z_DEFLATE) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register deflate filter")
+    if (H5Z_register(H5Z_DEFLATE) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register deflate filter")
 #endif /* H5_HAVE_FILTER_DEFLATE */
 #ifdef H5_HAVE_FILTER_SZIP
     H5Z_SZIP->encoder_present = SZ_encoder_enabled();
-    if (H5Z_register (H5Z_SZIP) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register szip filter")
+    if (H5Z_register(H5Z_SZIP) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register szip filter")
 #endif /* H5_HAVE_FILTER_SZIP */
 
 done:
@@ -180,7 +180,7 @@ H5Z_term_package(void)
         } /* end if */
 #endif /* H5Z_DEBUG */
         /* Free the table of filters */
-        if(H5Z_table_g) {
+        if (H5Z_table_g) {
             H5Z_table_g = (H5Z_class2_t *)H5MM_xfree(H5Z_table_g);
 #ifdef H5Z_DEBUG
             H5Z_stat_table_g = (H5Z_stats_t *)H5MM_xfree(H5Z_stat_table_g);
@@ -191,7 +191,7 @@ H5Z_term_package(void)
         } /* end if */
 
         /* Mark interface as closed */
-        if(0 == n)
+        if (0 == n)
             H5_PKG_INIT_VAR = FALSE;
     } /* end if */
 
@@ -219,7 +219,7 @@ H5Zregister(const void *cls)
 
     /* Check args */
     if (cls_real==NULL)
-        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "invalid filter class")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid filter class")
 
     /* Check H5Z_class_t version number; this is where a function to convert
      * from an outdated version should be called.
@@ -251,20 +251,20 @@ H5Zregister(const void *cls)
 
 #else /* H5_NO_DEPRECATED_SYMBOLS */
         /* Deprecated symbols not allowed, throw an error */
-        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "invalid H5Z_class_t version number");
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid H5Z_class_t version number");
 #endif /* H5_NO_DEPRECATED_SYMBOLS */
     } /* end if */
 
     if (cls_real->id < 0 || cls_real->id > H5Z_FILTER_MAX)
-        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "invalid filter identification number")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid filter identification number")
     if (cls_real->id < H5Z_FILTER_RESERVED)
-        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "unable to modify predefined filters")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "unable to modify predefined filters")
     if (cls_real->filter == NULL)
-        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "no filter function specified")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no filter function specified")
 
     /* Do it */
-    if (H5Z_register (cls_real) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register filter")
+    if (H5Z_register(cls_real) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register filter")
 
 done:
     FUNC_LEAVE_API(ret_value)
@@ -289,8 +289,8 @@ H5Z_register (const H5Z_class2_t *cls)
 
     FUNC_ENTER_NOAPI(FAIL)
 
-    HDassert (cls);
-    HDassert (cls->id >= 0 && cls->id <= H5Z_FILTER_MAX);
+    HDassert(cls);
+    HDassert(cls->id >= 0 && cls->id <= H5Z_FILTER_MAX);
 
     /* Is the filter already registered? */
     for (i = 0; i < H5Z_table_used_g; i++)
@@ -306,11 +306,11 @@ H5Z_register (const H5Z_class2_t *cls)
             H5Z_stats_t *stat_table = (H5Z_stats_t *)H5MM_realloc(H5Z_stat_table_g, n * sizeof(H5Z_stats_t));
 #endif /* H5Z_DEBUG */
             if (!table)
-                HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to extend filter table")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to extend filter table")
             H5Z_table_g = table;
 #ifdef H5Z_DEBUG
             if (!stat_table)
-                HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to extend filter statistics table")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to extend filter statistics table")
             H5Z_stat_table_g = stat_table;
 #endif /* H5Z_DEBUG */
             H5Z_table_alloc_g = n;
@@ -318,15 +318,15 @@ H5Z_register (const H5Z_class2_t *cls)
 
         /* Initialize */
         i = H5Z_table_used_g++;
-        HDmemcpy (H5Z_table_g+i, cls, sizeof(H5Z_class2_t));
+        HDmemcpy(H5Z_table_g+i, cls, sizeof(H5Z_class2_t));
 #ifdef H5Z_DEBUG
-        HDmemset (H5Z_stat_table_g+i, 0, sizeof(H5Z_stats_t));
+        HDmemset(H5Z_stat_table_g+i, 0, sizeof(H5Z_stats_t));
 #endif /* H5Z_DEBUG */
     } /* end if */
     /* Filter already registered */
     else {
         /* Replace old contents */
-        HDmemcpy (H5Z_table_g+i, cls, sizeof(H5Z_class2_t));
+        HDmemcpy(H5Z_table_g+i, cls, sizeof(H5Z_class2_t));
     } /* end else */
 
 done:
@@ -420,9 +420,9 @@ H5Z_unregister(H5Z_filter_t filter_id)
 
     /* Remove filter from table */
     /* Don't worry about shrinking table size (for now) */
-    HDmemmove (&H5Z_table_g[filter_index], &H5Z_table_g[filter_index+1], sizeof(H5Z_class2_t)*((H5Z_table_used_g-1)-filter_index));
+    HDmemmove(&H5Z_table_g[filter_index], &H5Z_table_g[filter_index+1], sizeof(H5Z_class2_t)*((H5Z_table_used_g-1)-filter_index));
 #ifdef H5Z_DEBUG
-    HDmemmove (&H5Z_stat_table_g[filter_index], &H5Z_stat_table_g[filter_index+1], sizeof(H5Z_stats_t)*((H5Z_table_used_g-1)-filter_index));
+    HDmemmove(&H5Z_stat_table_g[filter_index], &H5Z_stat_table_g[filter_index+1], sizeof(H5Z_stats_t)*((H5Z_table_used_g-1)-filter_index));
 #endif /* H5Z_DEBUG */
     H5Z_table_used_g--;
 
@@ -450,11 +450,11 @@ H5Z__check_unregister(hid_t ocpl_id, H5Z_filter_t filter_id)
 
     /* Get the plist structure of object creation */
     if (NULL == (plist = H5P_object_verify(ocpl_id, H5P_OBJECT_CREATE)))
-        HGOTO_ERROR (H5E_PLINE, H5E_BADATOM, FAIL, "can't find object for ID")
+        HGOTO_ERROR(H5E_PLINE, H5E_BADATOM, FAIL, "can't find object for ID")
 
     /* Check if the object creation property list uses the filter */
     if ((ret_value = H5P_filter_in_pline(plist, filter_id)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTGET, FAIL, "can't check filter in pipeline")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't check filter in pipeline")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -487,11 +487,11 @@ H5Z__check_unregister_group_cb(void *obj_ptr, hid_t H5_ATTR_UNUSED obj_id, void
 
     /* Get the group creation property */
     if ((ocpl_id = H5G_get_create_plist((H5G_t *)obj_ptr)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTGET, FAIL, "can't get group creation property list")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't get group creation property list")
 
     /* Check if the filter is in the group creation property list */
     if ((filter_in_pline = H5Z__check_unregister(ocpl_id, object->filter_id)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTGET, FAIL, "can't check filter in pipeline")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't check filter in pipeline")
 
     /* H5I_iterate expects TRUE to stop the loop over objects. Stop the loop and
      * let H5Z_unregister return failure.
@@ -504,7 +504,7 @@ H5Z__check_unregister_group_cb(void *obj_ptr, hid_t H5_ATTR_UNUSED obj_id, void
 done:
     if (ocpl_id > 0)
         if (H5I_dec_app_ref(ocpl_id) < 0)
-            HDONE_ERROR (H5E_PLINE, H5E_CANTDEC, FAIL, "can't release plist")
+            HDONE_ERROR(H5E_PLINE, H5E_CANTDEC, FAIL, "can't release plist")
 
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5Z__check_unregister_group_cb() */
@@ -536,11 +536,11 @@ H5Z__check_unregister_dset_cb(void *obj_ptr, hid_t H5_ATTR_UNUSED obj_id, void *
 
     /* Get the dataset creation property */
     if ((ocpl_id = H5D_get_create_plist((H5D_t *)obj_ptr)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTGET, FAIL, "can't get dataset creation property list")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't get dataset creation property list")
 
     /* Check if the filter is in the dataset creation property list */
     if ((filter_in_pline = H5Z__check_unregister(ocpl_id, object->filter_id)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANTGET, FAIL, "can't check filter in pipeline")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTGET, FAIL, "can't check filter in pipeline")
 
     /* H5I_iterate expects TRUE to stop the loop over objects. Stop the loop and
      * let H5Z_unregister return failure.
@@ -553,7 +553,7 @@ H5Z__check_unregister_dset_cb(void *obj_ptr, hid_t H5_ATTR_UNUSED obj_id, void *
 done:
     if (ocpl_id > 0)
         if (H5I_dec_app_ref(ocpl_id) < 0)
-            HDONE_ERROR (H5E_PLINE, H5E_CANTDEC, FAIL, "can't release plist")
+            HDONE_ERROR(H5E_PLINE, H5E_CANTDEC, FAIL, "can't release plist")
 
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5Z__check_unregister_dset_cb() */
@@ -582,7 +582,7 @@ H5Z__flush_file_cb(void *obj_ptr, hid_t H5_ATTR_UNUSED obj_id, void H5_ATTR_UNUS
      * if the file is opened for write */
     if (H5F_ACC_RDWR & H5F_INTENT((H5F_t *)obj_ptr)) {
         if (H5F_flush_mounts((H5F_t *)obj_ptr, H5AC_ind_read_dxpl_id, H5AC_rawdata_dxpl_id) < 0)
-            HGOTO_ERROR (H5E_PLINE, H5E_CANTFLUSH, FAIL, "unable to flush file hierarchy")
+            HGOTO_ERROR(H5E_PLINE, H5E_CANTFLUSH, FAIL, "unable to flush file hierarchy")
     } /* end if */
 
 done:
@@ -608,10 +608,10 @@ H5Zfilter_avail(H5Z_filter_t id)
 
     /* Check args */
     if (id < 0 || id > H5Z_FILTER_MAX)
-        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "invalid filter identification number")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid filter identification number")
 
     if ((ret_value = H5Z_filter_avail(id)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_NOTFOUND, FAIL, "unable to check the availability of the filter")
+        HGOTO_ERROR(H5E_PLINE, H5E_NOTFOUND, FAIL, "unable to check the availability of the filter")
 
 done:
     FUNC_LEAVE_API(ret_value)
@@ -629,22 +629,25 @@ done:
 htri_t
 H5Z_filter_avail(H5Z_filter_t id)
 {
-    size_t    i;                   /* Local index variable */
-    H5Z_class2_t *filter_info;
-    htri_t    ret_value = FALSE;   /* Return value */
+    H5PL_key_t          key;                /* Key for finding a plugin     */
+    const H5Z_class2_t *filter_info;        /* Filter information           */
+    size_t              i;                  /* Local index variable         */
+    htri_t              ret_value = FALSE;  /* Return value                 */
 
     FUNC_ENTER_NOAPI(FAIL)
 
     /* Is the filter already registered? */
     for (i = 0; i < H5Z_table_used_g; i++)
         if (H5Z_table_g[i].id == id)
-            HGOTO_DONE (TRUE)
+            HGOTO_DONE(TRUE)
 
-    if (NULL != (filter_info = (const H5Z_class2_t *)H5PL_load(H5PL_TYPE_FILTER, (int)id))) {
-        if (H5Z_register (filter_info) < 0)
-            HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register loaded filter")
-        HGOTO_DONE (TRUE)
+    key.id = (int)id;
+    if (NULL != (filter_info = (const H5Z_class2_t *)H5PL_load(H5PL_TYPE_FILTER, key))) {
+        if (H5Z_register(filter_info) < 0)
+            HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register loaded filter")
+        HGOTO_DONE(TRUE)
     }
+
 done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5Z_filter_avail() */
@@ -683,7 +686,7 @@ H5Z_prelude_callback(const H5O_pline_t *pline, hid_t dcpl_id, hid_t type_id,
             if (pline->filter[u].flags & H5Z_FLAG_OPTIONAL)
                 H5E_clear_stack (NULL);
             else
-                HGOTO_ERROR (H5E_PLINE, H5E_NOTFOUND, FAIL, "required filter was not located")
+                HGOTO_ERROR(H5E_PLINE, H5E_NOTFOUND, FAIL, "required filter was not located")
         } /* end if */
         else {
             /* Make correct callback */
@@ -691,7 +694,7 @@ H5Z_prelude_callback(const H5O_pline_t *pline, hid_t dcpl_id, hid_t type_id,
                 case H5Z_PRELUDE_CAN_APPLY:
                     /* Check if filter is configured to be able to encode */
                     if (!fclass->encoder_present)
-                        HGOTO_ERROR (H5E_PLINE, H5E_NOENCODER, FAIL, "Filter present but encoding is disabled.");
+                        HGOTO_ERROR(H5E_PLINE, H5E_NOENCODER, FAIL, "Filter present but encoding is disabled.");
 
 
                     /* Check if there is a "can apply" callback */
@@ -716,7 +719,7 @@ H5Z_prelude_callback(const H5O_pline_t *pline, hid_t dcpl_id, hid_t type_id,
                         /* Make callback to filter's "set local" function */
                         if ((fclass->set_local)(dcpl_id, type_id, space_id) < 0)
                             /* Indicate error during filter callback */
-                            HGOTO_ERROR (H5E_PLINE, H5E_SETLOCAL, FAIL, "error during user callback")
+                            HGOTO_ERROR(H5E_PLINE, H5E_SETLOCAL, FAIL, "error during user callback")
                     } /* end if */
                     break;
 
@@ -753,8 +756,8 @@ H5Z_prepare_prelude_callback_dcpl(hid_t dcpl_id, hid_t type_id, H5Z_prelude_type
 
     FUNC_ENTER_NOAPI_NOINIT
 
-    HDassert (H5I_GENPROP_LST == H5I_get_type(dcpl_id));
-    HDassert (H5I_DATATYPE == H5I_get_type(type_id));
+    HDassert(H5I_GENPROP_LST == H5I_get_type(dcpl_id));
+    HDassert(H5I_DATATYPE == H5I_get_type(type_id));
 
     /* Check if the property list is non-default */
     if (dcpl_id != H5P_DATASET_CREATE_DEFAULT) {
@@ -834,7 +837,7 @@ H5Z_can_apply(hid_t dcpl_id, hid_t type_id)
 
     /* Make "can apply" callbacks for filters in pipeline */
     if (H5Z_prepare_prelude_callback_dcpl(dcpl_id, type_id, H5Z_PRELUDE_CAN_APPLY) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANAPPLY, FAIL, "unable to apply filter")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANAPPLY, FAIL, "unable to apply filter")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -865,7 +868,7 @@ H5Z_set_local(hid_t dcpl_id, hid_t type_id)
 
     /* Make "set local" callbacks for filters in pipeline */
     if (H5Z_prepare_prelude_callback_dcpl(dcpl_id, type_id, H5Z_PRELUDE_SET_LOCAL) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_SETLOCAL, FAIL, "local filter parameters not set")
+        HGOTO_ERROR(H5E_PLINE, H5E_SETLOCAL, FAIL, "local filter parameters not set")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -894,7 +897,7 @@ H5Z_can_apply_direct(const H5O_pline_t *pline)
 
     /* Make "can apply" callbacks for filters in pipeline */
     if (H5Z_prelude_callback(pline, (hid_t)-1, (hid_t)-1, (hid_t)-1, H5Z_PRELUDE_CAN_APPLY) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_CANAPPLY, FAIL, "unable to apply filter")
+        HGOTO_ERROR(H5E_PLINE, H5E_CANAPPLY, FAIL, "unable to apply filter")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -927,7 +930,7 @@ H5Z_set_local_direct(const H5O_pline_t *pline)
 
     /* Make "set local" callbacks for filters in pipeline */
     if (H5Z_prelude_callback(pline, (hid_t)-1, (hid_t)-1, (hid_t)-1, H5Z_PRELUDE_SET_LOCAL) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_SETLOCAL, FAIL, "local filter parameters not set")
+        HGOTO_ERROR(H5E_PLINE, H5E_SETLOCAL, FAIL, "local filter parameters not set")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -952,10 +955,10 @@ H5Z_modify(const H5O_pline_t *pline, H5Z_filter_t filter, unsigned flags,
 
     FUNC_ENTER_NOAPI(FAIL)
 
-    HDassert (pline);
-    HDassert (filter >= 0 && filter <= H5Z_FILTER_MAX);
-    HDassert (0 == (flags & ~((unsigned)H5Z_FLAG_DEFMASK)));
-    HDassert (0 == cd_nelmts || cd_values);
+    HDassert(pline);
+    HDassert(filter >= 0 && filter <= H5Z_FILTER_MAX);
+    HDassert(0 == (flags & ~((unsigned)H5Z_FLAG_DEFMASK)));
+    HDassert(0 == cd_nelmts || cd_values);
 
     /* Locate the filter in the pipeline */
     for (idx = 0; idx < pline->nused; idx++)
@@ -964,7 +967,7 @@ H5Z_modify(const H5O_pline_t *pline, H5Z_filter_t filter, unsigned flags,
 
     /* Check if the filter was not already in the pipeline */
     if (idx > pline->nused)
-        HGOTO_ERROR (H5E_PLINE, H5E_NOTFOUND, FAIL, "filter not in pipeline")
+        HGOTO_ERROR(H5E_PLINE, H5E_NOTFOUND, FAIL, "filter not in pipeline")
 
     /* Change parameters for filter */
     pline->filter[idx].flags = flags;
@@ -982,7 +985,7 @@ H5Z_modify(const H5O_pline_t *pline, H5Z_filter_t filter, unsigned flags,
         if (cd_nelmts > H5Z_COMMON_CD_VALUES) {
             pline->filter[idx].cd_values = (unsigned *)H5MM_malloc(cd_nelmts * sizeof(unsigned));
             if (NULL == pline->filter[idx].cd_values)
-                HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for filter parameters")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for filter parameters")
         } /* end if */
         else
             pline->filter[idx].cd_values = pline->filter[idx]._cd_values;
@@ -1017,10 +1020,10 @@ H5Z_append(H5O_pline_t *pline, H5Z_filter_t filter, unsigned flags,
 
     FUNC_ENTER_NOAPI(FAIL)
 
-    HDassert (pline);
-    HDassert (filter >= 0 && filter <= H5Z_FILTER_MAX);
-    HDassert (0 == (flags & ~((unsigned)H5Z_FLAG_DEFMASK)));
-    HDassert (0 == cd_nelmts || cd_values);
+    HDassert(pline);
+    HDassert(filter >= 0 && filter <= H5Z_FILTER_MAX);
+    HDassert(0 == (flags & ~((unsigned)H5Z_FLAG_DEFMASK)));
+    HDassert(0 == cd_nelmts || cd_values);
 
     /*
      * Check filter limit.  We do it here for early warnings although we may
@@ -1052,13 +1055,13 @@ H5Z_append(H5O_pline_t *pline, H5Z_filter_t filter, unsigned flags,
         x.nalloc = MAX(H5Z_MAX_NFILTERS, 2 * pline->nalloc);
         x.filter = (H5Z_filter_info_t *)H5MM_realloc(pline->filter, x.nalloc * sizeof(x.filter[0]));
         if (NULL == x.filter)
-            HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for filter pipeline")
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for filter pipeline")
 
         /* Fix pointers in previous filters that need to point to their own
          *      internal data.
          */
-        for(n = 0; n < pline->nalloc; ++n)
-            if(x.filter[n].cd_values == (void *) ~((size_t) NULL))
+        for (n = 0; n < pline->nalloc; ++n)
+            if (x.filter[n].cd_values == (void *) ~((size_t) NULL))
                 x.filter[n].cd_values = x.filter[n]._cd_values;
 
         /* Point to newly allocated buffer */
@@ -1079,7 +1082,7 @@ H5Z_append(H5O_pline_t *pline, H5Z_filter_t filter, unsigned flags,
         if (cd_nelmts > H5Z_COMMON_CD_VALUES) {
             pline->filter[idx].cd_values = (unsigned *)H5MM_malloc(cd_nelmts * sizeof(unsigned));
             if (NULL == pline->filter[idx].cd_values)
-                HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for filter")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for filter")
         } /* end if */
         else
             pline->filter[idx].cd_values = pline->filter[idx]._cd_values;
@@ -1118,7 +1121,7 @@ H5Z_find_idx(H5Z_filter_t id)
 
     for (i = 0; i < H5Z_table_used_g; i++)
         if (H5Z_table_g[i].id == id)
-            HGOTO_DONE ((int)i)
+            HGOTO_DONE((int)i)
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -1145,10 +1148,10 @@ H5Z_find(H5Z_filter_t id)
 
     /* Get the index in the global table */
     if ((idx = H5Z_find_idx(id)) < 0)
-        HGOTO_ERROR (H5E_PLINE, H5E_NOTFOUND, NULL, "required filter %d is not registered", id)
+        HGOTO_ERROR(H5E_PLINE, H5E_NOTFOUND, NULL, "required filter %d is not registered", id)
 
     /* Set return value */
-    ret_value = H5Z_table_g+idx;
+    ret_value = H5Z_table_g + idx;
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
@@ -1219,13 +1222,15 @@ H5Z_pipeline(const H5O_pline_t *pline, unsigned flags,
              */
             if ((fclass_idx = H5Z_find_idx(pline->filter[idx].id)) < 0) {
                 hbool_t issue_error = FALSE;
+                H5PL_key_t key;
                 const H5Z_class2_t    *filter_info;
 
                 /* Try loading the filter */
-                if (NULL != (filter_info = (const H5Z_class2_t *)H5PL_load(H5PL_TYPE_FILTER, (int)(pline->filter[idx].id)))) {
+                key.id = (int)(pline->filter[idx].id);
+                if(NULL != (filter_info = (const H5Z_class2_t *)H5PL_load(H5PL_TYPE_FILTER, key))) {
                     /* Register the filter we loaded */
-                    if (H5Z_register(filter_info) < 0)
-                        HGOTO_ERROR (H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register filter")
+                    if(H5Z_register(filter_info) < 0)
+                        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to register filter")
 
                     /* Search in the table of registered filters again to find the dynamic filter just loaded and registered */
                     if ((fclass_idx = H5Z_find_idx(pline->filter[idx].id)) < 0)
@@ -1263,7 +1268,7 @@ H5Z_pipeline(const H5O_pline_t *pline, unsigned flags,
 
             if (0 == new_nbytes) {
                 if ((cb_struct.func && (H5Z_CB_FAIL == cb_struct.func (pline->filter[idx].id, *buf, *buf_size, cb_struct.op_data))) || !cb_struct.func)
-                    HGOTO_ERROR (H5E_PLINE, H5E_READERROR, FAIL, "filter returned failure during read")
+                    HGOTO_ERROR(H5E_PLINE, H5E_READERROR, FAIL, "filter returned failure during read")
 
                 *nbytes = *buf_size;
                 failed |= (unsigned)1 << idx;
@@ -1303,7 +1308,7 @@ H5Z_pipeline(const H5O_pline_t *pline, unsigned flags,
             if (0 == new_nbytes) {
                 if (0 == (pline->filter[idx].flags & H5Z_FLAG_OPTIONAL)) {
                     if ((cb_struct.func && (H5Z_CB_FAIL == cb_struct.func (pline->filter[idx].id, *buf, *nbytes, cb_struct.op_data))) || !cb_struct.func)
-                        HGOTO_ERROR (H5E_PLINE, H5E_WRITEERROR, FAIL, "filter returned failure")
+                        HGOTO_ERROR(H5E_PLINE, H5E_WRITEERROR, FAIL, "filter returned failure")
 
                     *nbytes = *buf_size;
                 }
@@ -1350,7 +1355,7 @@ H5Z_filter_info(const H5O_pline_t *pline, H5Z_filter_t filter)
 
     /* Check if the filter was not already in the pipeline */
     if (idx >= pline->nused)
-        HGOTO_ERROR (H5E_PLINE, H5E_NOTFOUND, NULL, "filter not in pipeline")
+        HGOTO_ERROR(H5E_PLINE, H5E_NOTFOUND, NULL, "filter not in pipeline")
 
     /* Set return value */
     ret_value = &pline->filter[idx];
@@ -1427,7 +1432,7 @@ H5Z_all_filters_avail(const H5O_pline_t *pline)
 
         /* Check if we didn't find the filter */
         if (j == H5Z_table_used_g)
-            HGOTO_DONE (FALSE)
+            HGOTO_DONE(FALSE)
     } /* end for */
 
 done:
@@ -1480,7 +1485,7 @@ H5Z_delete(H5O_pline_t *pline, H5Z_filter_t filter)
 
         /* filter was not found in the pipeline */
         if (!found)
-            HGOTO_ERROR (H5E_PLINE, H5E_NOTFOUND, FAIL, "filter not in pipeline")
+            HGOTO_ERROR(H5E_PLINE, H5E_NOTFOUND, FAIL, "filter not in pipeline")
 
         /* Free information for deleted filter */
         if (pline->filter[idx].name && pline->filter[idx].name != pline->filter[idx]._name)
@@ -1563,7 +1568,7 @@ H5Z_get_filter_info(H5Z_filter_t filter, unsigned int *filter_config_flags)
 
     /* Look up the filter class info */
     if (NULL == (fclass = H5Z_find(filter)))
-        HGOTO_ERROR (H5E_PLINE, H5E_BADVALUE, FAIL, "Filter not defined")
+        HGOTO_ERROR(H5E_PLINE, H5E_BADVALUE, FAIL, "Filter not defined")
 
     /* Set the filter config flags for the application */
     if (filter_config_flags != NULL) {