diff --git a/src/fast_mblock.h b/src/fast_mblock.h
index c0ea45c..866e70b 100644
--- a/src/fast_mblock.h
+++ b/src/fast_mblock.h
@@ -250,6 +250,15 @@ static inline int fast_mblock_set_need_wait(struct fast_mblock_man *mblock,
     return 0;
 }
 
+static inline void fast_mblock_set_exceed_log_level(
+        struct fast_mblock_man *mblock, const int log_level)
+{
+    mblock->alloc_elements.exceed_log_level = log_level;
+}
+
+#define fast_mblock_set_exceed_silence(mblock)  \
+    fast_mblock_set_exceed_log_level(mblock, LOG_NOTHING)
+
 /**
 alloc a node from the mblock
 parameters:
diff --git a/src/json_parser.h b/src/json_parser.h
index c5e2377..a25d076 100644
--- a/src/json_parser.h
+++ b/src/json_parser.h
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <time.h>
 #include "common_define.h"
+#include "shared_func.h"
 
 #define FC_JSON_TYPE_STRING   1
 #define FC_JSON_TYPE_ARRAY    2
@@ -117,7 +118,7 @@ extern "C" {
         *ctx->error_info.str = '\0';
     }
 
-    static inline void fc_init_json_context_ex(fc_json_context_t *ctx,
+    static inline int fc_init_json_context_ex(fc_json_context_t *ctx,
             const int init_buff_size, char *error_info, const int error_size)
     {
         ctx->output.buff = NULL;
@@ -133,12 +134,13 @@ extern "C" {
 
         ctx->error_no = 0;
         fc_set_json_error_buffer(ctx, error_info, error_size);
+        return 0;
     }
 
-    static inline void fc_init_json_context(fc_json_context_t *ctx)
+    static inline int fc_init_json_context(fc_json_context_t *ctx)
     {
         const int init_buff_size = 0;
-        fc_init_json_context_ex(ctx, init_buff_size, NULL, 0);
+        return fc_init_json_context_ex(ctx, init_buff_size, NULL, 0);
     }
 
     static inline void fc_destroy_json_context(fc_json_context_t *ctx)