feature: add filter tag lvl fuction

1. add the  filter tag lvl fuction
2. update the doc about filter tag lvl fuction

demo/non_os/stm32f10x/README.md

@@ -28,3 +28,4 @@
 - `elog_set_filter_lvl(ELOG_LVL_WARN);` ：动态设置过滤优先级
 - `elog_set_filter_tag("main");` ：动态设置过滤标签
 - `elog_set_filter_kw("Hello");` ：动态设置过滤关键词
+- `elog_set_filter_tag_lvl("main", ELOG_LVL_WARN);` ：动态设置过滤关键词级别

demo/non_os/stm32f10x/app/src/app.c

@@ -59,6 +59,8 @@ int main(void){
 //    elog_set_filter_tag("main");
     /* dynamic set output logs's filter for keyword */
 //    elog_set_filter_kw("Hello");
+    /* dynamic set output logs's tag filter */
+//    elog_set_filter_tag_lvl("main", ELOG_LVL_WARN);
 
     while(1) {
       /* test logger output */

demo/non_os/stm32f10x/components/easylogger/inc/elog_cfg.h

@@ -43,6 +43,8 @@
 #define ELOG_FILTER_TAG_MAX_LEN              16
 /* output filter's keyword max length */
 #define ELOG_FILTER_KW_MAX_LEN               16
+/* output filter's tag level max num */
+#define ELOG_FILTER_TAG_LVL_MAX_NUM          5
 /* output newline sign */
 #define ELOG_NEWLINE_SIGN                    "\r\n"
 

demo/os/linux/README.md

@@ -23,3 +23,4 @@
 - `elog_set_filter_lvl(ELOG_LVL_WARN);` ：动态设置过滤优先级
 - `elog_set_filter_tag("main");` ：动态设置过滤标签
 - `elog_set_filter_kw("Hello");` ：动态设置过滤关键词
+- `elog_set_filter_tag_lvl("main", ELOG_LVL_WARN);` ：动态设置过滤关键词级别

demo/os/linux/easylogger/inc/elog_cfg.h

@@ -47,6 +47,8 @@
 #define ELOG_FILTER_TAG_MAX_LEN              16
 /* output filter's keyword max length */
 #define ELOG_FILTER_KW_MAX_LEN               16
+/* output filter's tag level max num */
+#define ELOG_FILTER_TAG_LVL_MAX_NUM          5
 /* output newline sign */
 #define ELOG_NEWLINE_SIGN                    "\n"
 /* enable log color */

demo/os/linux/main.c

@@ -61,6 +61,8 @@ int main(void) {
 //    elog_set_filter_tag("main");
     /* dynamic set output logs's filter for keyword */
 //    elog_set_filter_kw("Hello");
+    /* dynamic set output logs's tag filter */
+//    elog_set_filter_tag_lvl("main", ELOG_LVL_WARN);
 
     /* test logger output */
     test_elog();

demo/os/windows/README.md

@@ -22,3 +22,4 @@
 - `elog_set_filter_lvl(ELOG_LVL_WARN);` ：动态设置过滤优先级
 - `elog_set_filter_tag("main");` ：动态设置过滤标签
 - `elog_set_filter_kw("Hello");` ：动态设置过滤关键词
+- `elog_set_filter_tag_lvl("main", ELOG_LVL_WARN);` ：动态设置过滤关键词级别

demo/os/windows/easylogger/inc/elog_cfg.h

@@ -43,6 +43,8 @@
 #define ELOG_FILTER_TAG_MAX_LEN              16
 /* output filter's keyword max length */
 #define ELOG_FILTER_KW_MAX_LEN               16
+/* output filter's tag level max num */
+#define ELOG_FILTER_TAG_LVL_MAX_NUM          5
 /* output newline sign */
 #define ELOG_NEWLINE_SIGN                    "\n"
 

demo/os/windows/main.c

@@ -58,6 +58,8 @@ int main(void) {
 //    elog_set_filter_tag("main");
     /* dynamic set output logs's filter for keyword */
 //    elog_set_filter_kw("Hello");
+    /* dynamic set output logs's tag filter */
+//    elog_set_filter_tag_lvl("main", ELOG_LVL_WARN);
 
     /* test logger output */
     test_elog();

docs/zh/api/kernel.md

@@ -338,6 +338,32 @@ void elog_set_filter(uint8_t level, const char *tag, const char *keyword)
 |tag                                     |标签|
 |keyword                                 |关键词|
 
+#### 1.7.3 设置过滤关键词等级
+
+> 注：对于配置较低的MCU建议不开启关键词过滤（默认为不过滤），增加关键字过滤等级将会在很大程度上减低日志的输出效率。实际上当需要实时查看日志时，过滤关键词功能交给上位机做会更轻松，所以后期的跨平台日志助手开发完成后，就无需该功能。
+
+```
+void elog_set_filter_tag_lvl(const char *tag, uint8_t level);
+```
+
+|参数                                    |描述|
+|:-----                                  |:----|
+|tag                                     |标签|
+|level                                   |级别|
+
+参数 level 日志级别可取如下值：
+```
+级别 标识 描述
+0    [A]  断言(Assert)
+1    [E]  错误(Error)
+2    [W]  警告(Warn)
+3    [I]  信息(Info)
+4    [D]  调试(Debug)
+5    [V]  详细(Verbose)
+0    [A]  静默停止输出
+5    [V]  全部
+```
+
 ### 1.8 缓冲输出模式
 
 #### 1.8.1 使能/失能缓冲输出模式

docs/zh/port/kernel.md

@@ -229,6 +229,13 @@ const char *elog_port_get_t_info(void)
 - 默认大小：`(ELOG_LINE_BUF_SIZE * 10)` ，不定义此宏，将会自动按照默认值设置
 - 操作方法：修改`ELOG_BUF_OUTPUT_BUF_SIZE`宏对应值即可
 
+### 4.6 过滤标签等级最大数目
+
+日志中标签内容及用户设置过滤标签等级的最大数目
+
+- 操作方法：修改`ELOG_FILTER_TAG_LVL_MAX_NUM`宏对应值即可
+
+
 ## 5、测试验证
 
 如果`\demo\`文件夹下有与项目平台一致的Demo，则直接编译运行，观察测试结果即可。无需关注下面的步骤。

easylogger/inc/elog.h

@@ -46,11 +46,15 @@ extern "C" {
 #define ELOG_LVL_DEBUG                       4
 #define ELOG_LVL_VERBOSE                     5
 
+/* the output silent level and all level for filter setting */
+#define LOG_FILTER_LVL_SILENT                      0
+#define LOG_FILTER_LVL_ALL                         5
+
 /* output log's level total number */
 #define ELOG_LVL_TOTAL_NUM                   6
 
 /* EasyLogger software version number */
-#define ELOG_SW_VERSION                      "2.1.99"
+#define ELOG_SW_VERSION                      "2.2.0"
 
 /* EasyLogger assert for developer. */
 #ifdef ELOG_ASSERT_ENABLE
@@ -135,17 +139,26 @@ typedef enum {
 #define ELOG_FMT_ALL    (ELOG_FMT_LVL|ELOG_FMT_TAG|ELOG_FMT_TIME|ELOG_FMT_P_INFO|ELOG_FMT_T_INFO| \
     ELOG_FMT_DIR|ELOG_FMT_FUNC|ELOG_FMT_LINE)
 
+/* output log's tag filter */
+typedef struct {
+    uint8_t level;
+    char tag[ELOG_FILTER_TAG_MAX_LEN + 1];
+    bool tag_use_flag; /**< false : tag is no used   true: tag is used */
+} ElogTagLvlFilter, *ElogTagLvlFilter_t;
+
 /* output log's filter */
 typedef struct {
     uint8_t level;
     char tag[ELOG_FILTER_TAG_MAX_LEN + 1];
     char keyword[ELOG_FILTER_KW_MAX_LEN + 1];
+    ElogTagLvlFilter tag_lvl_filter[ELOG_FILTER_TAG_LVL_MAX_NUM];
 } ElogFilter, *ElogFilter_t;
 
 /* easy logger */
 typedef struct {
     ElogFilter filter;
     size_t enabled_fmt_set[ELOG_LVL_TOTAL_NUM];
+    bool init_ok;
     bool output_enabled;
     bool output_lock_enabled;
     bool output_is_locked_before_enable;
@@ -174,6 +187,8 @@ void elog_set_filter(uint8_t level, const char *tag, const char *keyword);
 void elog_set_filter_lvl(uint8_t level);
 void elog_set_filter_tag(const char *tag);
 void elog_set_filter_kw(const char *keyword);
+void elog_set_filter_tag_lvl(const char *tag, uint8_t level);
+uint8_t elog_get_filter_tag_lvl(const char *tag);
 void elog_raw(const char *format, ...);
 void elog_output(uint8_t level, const char *tag, const char *file, const char *func,
         const long line, const char *format, ...);

easylogger/inc/elog_cfg.h

@@ -43,6 +43,8 @@
 #define ELOG_FILTER_TAG_MAX_LEN                  30
 /* output filter's keyword max length */
 #define ELOG_FILTER_KW_MAX_LEN                   16
+/* output filter's tag level max num */
+#define ELOG_FILTER_TAG_LVL_MAX_NUM              5
 /* output newline sign */
 #define ELOG_NEWLINE_SIGN                        "\n"
 /*---------------------------------------------------------------------------*/

easylogger/src/elog.c

@@ -136,6 +136,7 @@ static const char *color_output_info[] = {
 #endif /* ELOG_COLOR_ENABLE */
 
 static bool get_fmt_enabled(uint8_t level, size_t set);
+static void elog_set_filter_tag_lvl_default();
 
 /* EasyLogger assert hook */
 void (*elog_assert_hook)(const char* expr, const char* func, size_t line);
@@ -155,6 +156,10 @@ ElogErrCode elog_init(void) {
 
     ElogErrCode result = ELOG_NO_ERR;
 
+    if (elog.init_ok == true) {
+        return result;
+    }
+
     /* port initialize */
     result = elog_port_init();
     if (result != ELOG_NO_ERR) {
@@ -182,6 +187,11 @@ ElogErrCode elog_init(void) {
     /* set level is ELOG_LVL_VERBOSE */
     elog_set_filter_lvl(ELOG_LVL_VERBOSE);
 
+    /* set tag_level to default val */
+    elog_set_filter_tag_lvl_default();
+
+    elog.init_ok = true;
+
     return result;
 }
 
@@ -322,6 +332,103 @@ void elog_output_unlock(void) {
     }
 }
 
+/**
+ * set log filter's tag level val to default
+ */
+static void elog_set_filter_tag_lvl_default()
+{
+    uint8_t i = 0;
+
+    for (i =0; i< ELOG_FILTER_TAG_LVL_MAX_NUM; i++){
+        memset(elog.filter.tag_lvl_filter[i].tag, '\0', ELOG_FILTER_TAG_MAX_LEN + 1);
+        elog.filter.tag_lvl_filter[i].level = LOG_FILTER_LVL_SILENT;
+        elog.filter.tag_lvl_filter[i].tag_use_flag = false;
+    }
+}
+
+/**
+ * set log filter's tag level
+ *
+ * @param tag tag
+ * @param level level
+ */
+void elog_set_filter_tag_lvl(const char *tag, uint8_t level)
+{
+    ELOG_ASSERT(level <= ELOG_LVL_VERBOSE);
+    ELOG_ASSERT(tag != ((void *)0));
+    uint8_t i = 0;
+
+    if (!elog.init_ok) {
+        return;
+    }
+
+    elog_port_output_lock();
+    /* find the tag in arr */
+    for (i =0; i< ELOG_FILTER_TAG_LVL_MAX_NUM; i++){
+        if (elog.filter.tag_lvl_filter[i].tag_use_flag == true &&
+            !strncmp(tag, elog.filter.tag_lvl_filter[i].tag,ELOG_FILTER_TAG_MAX_LEN)){
+            break;
+        }
+    }
+
+    if (i < ELOG_FILTER_TAG_LVL_MAX_NUM){
+        /* find OK */
+        if (level == LOG_FILTER_LVL_ALL){
+            /* remove current tag's level filter when input level is the lowest level */
+             elog.filter.tag_lvl_filter[i].tag_use_flag = false;
+             memset(elog.filter.tag_lvl_filter[i].tag, '\0', ELOG_FILTER_TAG_MAX_LEN + 1);
+             elog.filter.tag_lvl_filter[i].level = LOG_FILTER_LVL_SILENT;
+        } else{
+            elog.filter.tag_lvl_filter[i].level = level;
+        }
+    } else{
+        /* only add the new tag's level filer when level is not LOG_FILTER_LVL_ALL */
+        if (level != LOG_FILTER_LVL_ALL){
+            for (i =0; i< ELOG_FILTER_TAG_LVL_MAX_NUM; i++){
+                if (elog.filter.tag_lvl_filter[i].tag_use_flag == false){
+                    strncpy(elog.filter.tag_lvl_filter[i].tag, tag, ELOG_FILTER_TAG_MAX_LEN);
+                    elog.filter.tag_lvl_filter[i].level = level;
+                    elog.filter.tag_lvl_filter[i].tag_use_flag = true;
+                    break;
+                }
+            }
+        }
+    }
+    elog_output_unlock();
+}
+
+/**
+ * get the level on tag's level filer
+ *
+ * @param tag tag
+ *
+ * @return It will return the lowest level when tag was not found.
+ *         Other level will return when tag was found.
+ */
+uint8_t elog_get_filter_tag_lvl(const char *tag)
+{
+    ELOG_ASSERT(tag != ((void *)0));
+    uint8_t i = 0;
+    uint8_t level = LOG_FILTER_LVL_ALL;
+
+    if (!elog.init_ok) {
+        return level;
+    }
+
+    elog_port_output_lock();
+    /* find the tag in arr */
+    for (i =0; i< ELOG_FILTER_TAG_LVL_MAX_NUM; i++){
+        if (elog.filter.tag_lvl_filter[i].tag_use_flag == true &&
+            !strncmp(tag, elog.filter.tag_lvl_filter[i].tag,ELOG_FILTER_TAG_MAX_LEN)){
+            level = elog.filter.tag_lvl_filter[i].level;
+            break;
+        }
+    }
+    elog_output_unlock();
+
+    return level;
+}
+
 /**
  * output RAW format log
  *
@@ -401,7 +508,7 @@ void elog_output(uint8_t level, const char *tag, const char *file, const char *f
         return;
     }
     /* level filter */
-    if (level > elog.filter.level) {
+    if (level > elog.filter.level || level > elog_get_filter_tag_lvl(tag)) {
         return;
     } else if (!strstr(tag, elog.filter.tag)) { /* tag filter */
         return;