[component][ulog] Add filter get API.

Author: armink

components/utilities/ulog/ulog.c

@@ -74,15 +74,6 @@
 #error "the log line buffer size must more than 80"
 #endif
 
-/* tag's level filter */
-struct tag_lvl_filter
-{
-    char tag[ULOG_FILTER_TAG_MAX_LEN + 1];
-    rt_uint32_t level;
-    rt_slist_t list;
-};
-typedef struct tag_lvl_filter *tag_lvl_filter_t;
-
 struct rt_ulog
 {
     rt_bool_t init_ok;
@@ -760,7 +751,7 @@ void ulog_hexdump(const char *name, rt_size_t width, rt_uint8_t *buf, rt_size_t
 int ulog_tag_lvl_filter_set(const char *tag, rt_uint32_t level)
 {
     rt_slist_t *node;
-    tag_lvl_filter_t tag_lvl = NULL;
+    ulog_tag_lvl_filter_t tag_lvl = NULL;
     int result = RT_EOK;
 
     RT_ASSERT(level <= LOG_FILTER_LVL_ALL);
@@ -773,7 +764,7 @@ int ulog_tag_lvl_filter_set(const char *tag, rt_uint32_t level)
     /* find the tag in list */
     for (node = rt_slist_first(&ulog.filter.tag_lvl_list); node; node = rt_slist_next(node))
     {
-        tag_lvl = rt_slist_entry(node, struct tag_lvl_filter, list);
+        tag_lvl = rt_slist_entry(node, struct ulog_tag_lvl_filter, list);
         if (!rt_strncmp(tag_lvl->tag, tag, ULOG_FILTER_TAG_MAX_LEN))
         {
             break;
@@ -804,7 +795,7 @@ int ulog_tag_lvl_filter_set(const char *tag, rt_uint32_t level)
         if (level != LOG_FILTER_LVL_ALL)
         {
             /* new a tag's level filter */
-            tag_lvl = (tag_lvl_filter_t)rt_malloc(sizeof(struct tag_lvl_filter));
+            tag_lvl = (ulog_tag_lvl_filter_t)rt_malloc(sizeof(struct ulog_tag_lvl_filter));
             if (tag_lvl)
             {
                 rt_memset(tag_lvl->tag, 0 , sizeof(tag_lvl->tag));
@@ -835,7 +826,7 @@ int ulog_tag_lvl_filter_set(const char *tag, rt_uint32_t level)
 rt_uint32_t ulog_tag_lvl_filter_get(const char *tag)
 {
     rt_slist_t *node;
-    tag_lvl_filter_t tag_lvl = NULL;
+    ulog_tag_lvl_filter_t tag_lvl = NULL;
     rt_uint32_t level = LOG_FILTER_LVL_ALL;
 
     if (!ulog.init_ok)
@@ -846,7 +837,7 @@ rt_uint32_t ulog_tag_lvl_filter_get(const char *tag)
     /* find the tag in list */
     for (node = rt_slist_first(&ulog.filter.tag_lvl_list); node; node = rt_slist_next(node))
     {
-        tag_lvl = rt_slist_entry(node, struct tag_lvl_filter, list);
+        tag_lvl = rt_slist_entry(node, struct ulog_tag_lvl_filter, list);
         if (!rt_strncmp(tag_lvl->tag, tag, ULOG_FILTER_TAG_MAX_LEN))
         {
             level = tag_lvl->level;
@@ -859,6 +850,16 @@ rt_uint32_t ulog_tag_lvl_filter_get(const char *tag)
     return level;
 }
 
+/**
+ * get the tag's level list on filter
+ *
+ * @return tag's level list
+ */
+rt_slist_t *ulog_tag_lvl_list_get(void)
+{
+    return &ulog.filter.tag_lvl_list;
+}
+
 /**
  * set log global filter level
  *
@@ -873,6 +874,18 @@ void ulog_global_filter_lvl_set(rt_uint32_t level)
     ulog.filter.level = level;
 }
 
+/**
+ * get log global filter level
+ *
+ * @return log level: LOG_LVL_ASSERT, LOG_LVL_ERROR, LOG_LVL_WARNING, LOG_LVL_INFO, LOG_LVL_DBG
+ *              LOG_FILTER_LVL_SILENT: disable all log output, except assert level
+ *              LOG_FILTER_LVL_ALL: enable all log output
+ */
+rt_uint32_t ulog_global_filter_lvl_get(void)
+{
+    return ulog.filter.level;
+}
+
 /**
  * set log global filter tag
  *
@@ -885,6 +898,16 @@ void ulog_global_filter_tag_set(const char *tag)
     rt_strncpy(ulog.filter.tag, tag, ULOG_FILTER_TAG_MAX_LEN);
 }
 
+/**
+ * get log global filter tag
+ *
+ * @return tag
+ */
+const char *ulog_global_filter_tag_get(void)
+{
+    return ulog.filter.tag;
+}
+
 /**
  * set log global filter keyword
  *
@@ -897,6 +920,16 @@ void ulog_global_filter_kw_set(const char *keyword)
     rt_strncpy(ulog.filter.keyword, keyword, ULOG_FILTER_KW_MAX_LEN);
 }
 
+/**
+ * get log global filter keyword
+ *
+ * @return keyword
+ */
+const char *ulog_global_filter_kw_get(void)
+{
+    return ulog.filter.keyword;
+}
+
 #if defined(RT_USING_FINSH) && defined(FINSH_USING_MSH)
 #include <finsh.h>
 
@@ -1198,10 +1231,10 @@ void ulog_deinit(void)
 #ifdef ULOG_USING_FILTER
     /* deinit tag's level filter */
     {
-        tag_lvl_filter_t tag_lvl;
+        ulog_tag_lvl_filter_t tag_lvl;
         for (node = rt_slist_first(&ulog.filter.tag_lvl_list); node; node = rt_slist_next(node))
         {
-            tag_lvl = rt_slist_entry(node, struct tag_lvl_filter, list);
+            tag_lvl = rt_slist_entry(node, struct ulog_tag_lvl_filter, list);
             rt_free(tag_lvl);
         }
     }

components/utilities/ulog/ulog.h

@@ -58,9 +58,13 @@ rt_err_t ulog_backend_unregister(ulog_backend_t backend);
  */
 int ulog_tag_lvl_filter_set(const char *tag, rt_uint32_t level);
 rt_uint32_t ulog_tag_lvl_filter_get(const char *tag);
+rt_slist_t *ulog_tag_lvl_list_get(void);
 void ulog_global_filter_lvl_set(rt_uint32_t level);
+rt_uint32_t ulog_global_filter_lvl_get(void);
 void ulog_global_filter_tag_set(const char *tag);
+const char *ulog_global_filter_tag_get(void);
 void ulog_global_filter_kw_set(const char *keyword);
+const char *ulog_global_filter_kw_get(void);
 #endif /* ULOG_USING_FILTER */
 
 /*

components/utilities/ulog/ulog_def.h

@@ -165,6 +165,15 @@ extern "C" {
 
 #define ULOG_FRAME_MAGIC               0x10
 
+/* tag's level filter */
+struct ulog_tag_lvl_filter
+{
+    char tag[ULOG_FILTER_TAG_MAX_LEN + 1];
+    rt_uint32_t level;
+    rt_slist_t list;
+};
+typedef struct ulog_tag_lvl_filter *ulog_tag_lvl_filter_t;
+
 struct ulog_frame
 {
     /* magic word is 0x10 ('lo') */