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authorAllen Byrne <byrn@hdfgroup.org>2015-03-05 16:09:22 (GMT)
committerAllen Byrne <byrn@hdfgroup.org>2015-03-05 16:09:22 (GMT)
commit5be5a4d83274bbfd4a82795cc14beb0209d18a36 (patch)
tree632a252f8d2068806284bb342de16ff27a8a7e40 /src/H5PL.c
parentda1bfda6458cd8482eb73606d7085b66dd88b58c (diff)
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[svn-r26365] HDFFV-8520: Add plugin control APIs.
Update windows WiX packaging. h5committested
Diffstat (limited to 'src/H5PL.c')
-rw-r--r--src/H5PL.c83
1 files changed, 63 insertions, 20 deletions
diff --git a/src/H5PL.c b/src/H5PL.c
index 1806ea6..619dd84 100644
--- a/src/H5PL.c
+++ b/src/H5PL.c
@@ -97,6 +97,7 @@ typedef const void *(__cdecl *H5PL_get_plugin_info_t)(void);
typedef const void *(*H5PL_get_plugin_info_t)(void);
#endif /* H5_HAVE_WIN32_API */
+/* Whether to preload pathnames for plugin libraries */
#define H5PL_DEFAULT_PATH H5_DEFAULT_PLUGINDIR
/* Special symbol to indicate no plugin loading */
@@ -149,8 +150,8 @@ static char *H5PL_path_table_g[H5PL_MAX_PATH_NUM];
static size_t H5PL_num_paths_g = 0;
static hbool_t H5PL_path_found_g = FALSE;
-/* Whether to preload pathnames for plugin libraries */
-static hbool_t H5PL_no_plugin_g = FALSE;
+/* Enable all plugin libraries */
+static unsigned int H5PL_plugin_g = H5PL_ALL_PLUGIN;
/*--------------------------------------------------------------------------
@@ -177,7 +178,7 @@ H5PL__init_interface(void)
if(NULL != (preload_path = HDgetenv("HDF5_PLUGIN_PRELOAD"))) {
/* Special symbal "::" means no plugin during data reading. */
if(!HDstrcmp(preload_path, H5PL_NO_PLUGIN))
- H5PL_no_plugin_g = TRUE;
+ H5PL_plugin_g = 0;
} /* end if */
FUNC_LEAVE_NOAPI(SUCCEED)
@@ -185,31 +186,68 @@ H5PL__init_interface(void)
/*-------------------------------------------------------------------------
- * Function: H5PL_no_plugin
+ * Function: H5PLset_loading_state
*
- * Purpose: Quick way for filter module to query whether to load plugin
+ * Purpose: Control the loading of dynamic plugin types.
*
- * Return: TRUE: No plugin loading during data reading
+ * This function will not allow plugin types if the pathname from the HDF5_PLUGIN_PRELOAD
+ * environment variable is set to the special "::" string.
*
- * FALSE: Load plugin during data reading
+ * plugin bit = 0, will prevent the use of that dynamic plugin type.
+ * plugin bit = 1, will allow the use of that dynamic plugin type.
*
- * Programmer: Raymond Lu
- * 20 February 2013
+ * H5PL_TYPE_FILTER changes just dynamic filters
+ * A H5PL_ALL_PLUGIN will enable all dynamic plugin types
+ * A zero value will disable all dynamic plugin types
+ *
+ * Return: Non-negative or success
*
*-------------------------------------------------------------------------
*/
-htri_t
-H5PL_no_plugin(void)
+herr_t
+H5PLset_loading_state(unsigned int plugin_type)
{
- htri_t ret_value;
+ char *preload_path;
+ herr_t ret_value = SUCCEED; /* Return value */
+ FUNC_ENTER_API(FAIL)
+ H5TRACE1("e", "Iu", plugin_type);
+ /* change the bit value of the requested plugin type(s) */
+ H5PL_plugin_g = plugin_type;
+ /* check if special ENV variable is set and disable all plugin types */
+ if(NULL != (preload_path = HDgetenv("HDF5_PLUGIN_PRELOAD"))) {
+ /* Special symbol "::" means no plugin during data reading. */
+ if(!HDstrcmp(preload_path, H5PL_NO_PLUGIN))
+ H5PL_plugin_g = 0;
+ }
+done:
+ FUNC_LEAVE_API(ret_value)
+} /* end H5PLset_loading_state() */
- FUNC_ENTER_NOAPI(FAIL)
- ret_value = (htri_t)H5PL_no_plugin_g;
+/*-------------------------------------------------------------------------
+ * Function: H5PLget_loading_state
+ *
+ * Purpose: Query state of the loading of dynamic plugin types.
+ *
+ * This function will return the state of the global flag.
+ *
+ * Return: Zero if all plugin types are disabled, negative if all
+ * plugin types are enabled, positive if one or more of the plugin types are enabled.
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5PLget_loading_state(unsigned int* plugin_type)
+{
+ herr_t ret_value = SUCCEED; /* Return value */
+ FUNC_ENTER_API(FAIL)
+
+ if(plugin_type)
+ *plugin_type = H5PL_plugin_g;
+ done:
+ FUNC_LEAVE_API(ret_value)
+} /* end H5PLget_loading_state() */
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5PL_no_plugin() */
/*-------------------------------------------------------------------------
@@ -285,9 +323,14 @@ H5PL_load(H5PL_type_t type, int id)
FUNC_ENTER_NOAPI(NULL)
- /* Check for "no plugins" indicated" */
- if(H5PL_no_plugin_g)
- HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin filter '%d' is not available", id)
+ switch (type) {
+ case H5PL_TYPE_FILTER:
+ if((H5PL_plugin_g & H5PL_FILTER_PLUGIN) == 0)
+ HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin filter '%d' is not available", id)
+ break;
+ default:
+ HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin '%d' is not valid", id)
+ }
/* Initialize the location paths for dynamic libraries, if they aren't
* already set up.