20 files changed, 725 insertions, 654 deletions

diff --git a/decoders/http/CMakeLists.txt b/decoders/http/CMakeLists.txt
index 7e49755..9a278d2 100644
--- a/decoders/http/CMakeLists.txt
+++ b/decoders/http/CMakeLists.txt
@@ -1,14 +1,18 @@
 add_definitions(-fPIC)
+include_directories(${CMAKE_BINARY_DIR}/vendor/llhttp/include)
+include_directories(${CMAKE_BINARY_DIR}/vendor/brotli/include)
+include_directories(${CMAKE_SOURCE_DIR}/deps)
 
-set(HTTP_SRC ${DEPS_SRC} http_decoder.cpp http_decoder_utils.cpp http_decoder_half.cpp
+set(HTTP_SRC http_decoder.cpp http_decoder_utils.cpp http_decoder_half.cpp
              http_decoder_table.cpp http_decoder_string.cpp http_content_decompress.cpp
              http_decoder_result_queue.cpp http_decoder_stat.cpp http_decoder_tunnel.cpp)
 
-add_library(http_decoder STATIC ${HTTP_SRC})
-set_target_properties(http_decoder PROPERTIES LINK_FLAGS "-Wl,--version-script=${PROJECT_SOURCE_DIR}/src/version.map")
-target_include_directories(http_decoder PUBLIC ${CMAKE_SOURCE_DIR}/deps/)
-target_link_libraries(http_decoder z llhttp-static fieldstat4)
-target_link_libraries(http_decoder brotli-dec-static brotli-common-static )
-set_target_properties(http_decoder PROPERTIES PREFIX "")
+add_library(http STATIC ${HTTP_SRC})
+add_library(http_dyn SHARED ${HTTP_SRC})
+set_target_properties(http PROPERTIES LINK_FLAGS "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/version.map")
+target_include_directories(http PUBLIC ${CMAKE_SOURCE_DIR}/deps/)
+target_link_libraries(http z llhttp-static fieldstat4 brotli-dec-static brotli-common-static nmx_pool toml)
+set_target_properties(http PROPERTIES PREFIX "") 
 
-#install(TARGETS http_decoder LIBRARY DESTINATION ${CMAKE_INSTALL_PREFIX}/plugin/${lib_name} COMPONENT LIBRARIES)
\ No newline at end of file
+set_target_properties(http_dyn PROPERTIES PREFIX "") 
+target_link_libraries(http_dyn z llhttp-static fieldstat4 brotli-dec-static brotli-common-static nmx_pool toml)
\ No newline at end of file
diff --git a/decoders/http/http_content_decompress.cpp b/decoders/http/http_content_decompress.cpp
index 3b71a40..cb90811 100644
--- a/decoders/http/http_content_decompress.cpp
+++ b/decoders/http/http_content_decompress.cpp
@@ -1,21 +1,13 @@
-/*
-**********************************************************************************************
-*	File: http_content_decompress.c
-*   Description: 
-*	Authors: LuWenPeng <[email protected]>
-*	Date:    2022-10-31
-*   Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
-***********************************************************************************************
-*/
 #include <zlib.h>
 #include <string.h>
 #include <assert.h>
 #include <brotli/decode.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
 #define HTTP_DECOMPRESS_BUFFER_SIZE (4096)
 
-struct http_content_decompress {
+struct http_content_decompress
+{
     enum http_content_encoding encoding;
     z_stream *z_stream_ptr;
     BrotliDecoderState *br_state;
@@ -23,38 +15,41 @@ struct http_content_decompress {
     size_t buffer_size;
 };
 
-enum http_content_encoding
-http_content_encoding_str2int(const char *content_encoding)
+enum http_content_encoding http_content_encoding_str2int(const char *content_encoding)
 {
-    if (strcasestr(content_encoding, "gzip") != NULL) {
+    if (strcasestr(content_encoding, "gzip") != NULL)
+    {
         return HTTP_CONTENT_ENCODING_GZIP;
     }
-    if (strcasestr(content_encoding, "deflate") != NULL) {
+    if (strcasestr(content_encoding, "deflate") != NULL)
+    {
         return HTTP_CONTENT_ENCODING_DEFLATE;
     }
-    if (strcasestr(content_encoding, "br") != NULL) {
+    if (strcasestr(content_encoding, "br") != NULL)
+    {
         return HTTP_CONTENT_ENCODING_BR;
     }
     return HTTP_CONTENT_ENCODING_NONE;
 }
 
-const char *
-http_content_encoding_int2str(enum http_content_encoding content_encoding)
+const char *http_content_encoding_int2str(enum http_content_encoding content_encoding)
 {
-    if (content_encoding == HTTP_CONTENT_ENCODING_GZIP) {
+    if (content_encoding == HTTP_CONTENT_ENCODING_GZIP)
+    {
         return "gzip";
     }
-    if (content_encoding == HTTP_CONTENT_ENCODING_DEFLATE) {
+    if (content_encoding == HTTP_CONTENT_ENCODING_DEFLATE)
+    {
         return "deflate";
     }
-    if (content_encoding == HTTP_CONTENT_ENCODING_BR) {
+    if (content_encoding == HTTP_CONTENT_ENCODING_BR)
+    {
         return "br";
     }
     return "unknown";
 }
 
-struct http_content_decompress *
-http_content_decompress_create(enum http_content_encoding encoding)
+struct http_content_decompress *http_content_decompress_create(enum http_content_encoding encoding)
 {
     struct http_content_decompress *decompress =
         CALLOC(struct http_content_decompress, 1);
@@ -64,8 +59,8 @@ http_content_decompress_create(enum http_content_encoding encoding)
     decompress->z_stream_ptr = NULL;
     decompress->br_state = NULL;
 
-    if (encoding == HTTP_CONTENT_ENCODING_GZIP
-        || encoding == HTTP_CONTENT_ENCODING_DEFLATE) {
+    if (encoding == HTTP_CONTENT_ENCODING_GZIP || encoding == HTTP_CONTENT_ENCODING_DEFLATE)
+    {
         decompress->z_stream_ptr = CALLOC(z_stream, 1);
         assert(decompress->z_stream_ptr);
 
@@ -75,22 +70,27 @@ http_content_decompress_create(enum http_content_encoding encoding)
         decompress->z_stream_ptr->avail_in = 0;
         decompress->z_stream_ptr->next_in = Z_NULL;
 
-        if (encoding == HTTP_CONTENT_ENCODING_GZIP) {
-            if (inflateInit2(decompress->z_stream_ptr, MAX_WBITS + 16)
-                != Z_OK) {
+        if (encoding == HTTP_CONTENT_ENCODING_GZIP)
+        {
+            if (inflateInit2(decompress->z_stream_ptr, MAX_WBITS + 16) != Z_OK)
+            {
                 goto error;
             }
         }
-        if (encoding == HTTP_CONTENT_ENCODING_DEFLATE) {
-            if (inflateInit2(decompress->z_stream_ptr, -MAX_WBITS) != Z_OK) {
+        if (encoding == HTTP_CONTENT_ENCODING_DEFLATE)
+        {
+            if (inflateInit2(decompress->z_stream_ptr, -MAX_WBITS) != Z_OK)
+            {
                 goto error;
             }
         }
     }
 
-    if (encoding == HTTP_CONTENT_ENCODING_BR) {
+    if (encoding == HTTP_CONTENT_ENCODING_BR)
+    {
         decompress->br_state = BrotliDecoderCreateInstance(NULL, NULL, NULL);
-        if (decompress->br_state == NULL) {
+        if (decompress->br_state == NULL)
+        {
             goto error;
         }
     }
@@ -103,14 +103,17 @@ error:
 
 void http_content_decompress_destroy(struct http_content_decompress *decompress)
 {
-    if (NULL == decompress) {
+    if (NULL == decompress)
+    {
         return;
     }
-    if (decompress->z_stream_ptr != NULL) {
+    if (decompress->z_stream_ptr != NULL)
+    {
         inflateEnd(decompress->z_stream_ptr);
         FREE(decompress->z_stream_ptr);
     }
-    if (decompress->br_state) {
+    if (decompress->br_state)
+    {
         BrotliDecoderDestroyInstance(decompress->br_state);
         decompress->br_state = NULL;
     }
@@ -118,10 +121,9 @@ void http_content_decompress_destroy(struct http_content_decompress *decompress)
     FREE(decompress);
 }
 
-static int
-http_content_decompress_write_zlib(struct http_content_decompress *decompress,
-                                   const char *indata, size_t indata_len,
-                                   char **outdata, size_t *outdata_len)
+static int http_content_decompress_write_zlib(struct http_content_decompress *decompress,
+                                              const char *indata, size_t indata_len,
+                                              char **outdata, size_t *outdata_len)
 {
     z_stream *z_stream_ptr = decompress->z_stream_ptr;
     z_stream_ptr->avail_in = (unsigned int)indata_len;
@@ -132,35 +134,40 @@ http_content_decompress_write_zlib(struct http_content_decompress *decompress,
     *outdata = NULL;
     *outdata_len = 0;
 
-    do {
+    do
+    {
         int ret = inflate(z_stream_ptr, Z_NO_FLUSH);
-        if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT
-            || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR) {
+        if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR)
+        {
             (void)inflateEnd(z_stream_ptr);
             return -1;
         }
 
         size_t have = decompress->buffer_size - z_stream_ptr->avail_out;
-        if (have > 0) {
-            if (0 == z_stream_ptr->avail_out) {
-                fprintf(stderr, "realloc outbuffer,before: %zu bytes, after :%zu B\n", decompress->buffer_size , decompress->buffer_size + have);    ;
+        if (have > 0)
+        {
+            if (0 == z_stream_ptr->avail_out)
+            {
                 decompress->buffer_size += have;
                 decompress->buffer = REALLOC(char, decompress->buffer,
                                              decompress->buffer_size);
                 *outdata = decompress->buffer;
                 *outdata_len = *outdata_len + have;
-                // http_decoder_log(DEBUG, "%s realloc outbuffer %zu bytes", 
-                //                  http_content_encoding_int2str(decompress->encoding), 
+                // http_decoder_log(DEBUG, "%s realloc outbuffer %zu bytes",
+                //                  http_content_encoding_int2str(decompress->encoding),
                 //                  decompress->buffer_size);
                 z_stream_ptr->avail_out = have;
-                z_stream_ptr->next_out = (unsigned char *)decompress->buffer + 
+                z_stream_ptr->next_out = (unsigned char *)decompress->buffer +
                                          (decompress->buffer_size - have);
-            } else {
+            }
+            else
+            {
                 *outdata = decompress->buffer;
                 *outdata_len = have;
             }
         }
-        if(Z_STREAM_END == ret){
+        if (Z_STREAM_END == ret)
+        {
             break;
         }
     } while (z_stream_ptr->avail_in != 0);
@@ -169,10 +176,9 @@ http_content_decompress_write_zlib(struct http_content_decompress *decompress,
     return 0;
 }
 
-static int
-http_content_decompress_write_br(struct http_content_decompress *decompress,
-                                 const char *indata, size_t indata_len,
-                                 char **outdata, size_t *outdata_len)
+static int http_content_decompress_write_br(struct http_content_decompress *decompress,
+                                            const char *indata, size_t indata_len,
+                                            char **outdata, size_t *outdata_len)
 {
     size_t available_in = indata_len;
     const unsigned char *next_in = (const unsigned char *)indata;
@@ -182,12 +188,15 @@ http_content_decompress_write_br(struct http_content_decompress *decompress,
     *outdata = NULL;
     *outdata_len = 0;
 
-    for (;;) {
-        int ret = BrotliDecoderDecompressStream(decompress->br_state, &available_in, 
-                                            &next_in, &available_out, &next_out, 0);
+    for (;;)
+    {
+        int ret = BrotliDecoderDecompressStream(decompress->br_state, &available_in,
+                                                &next_in, &available_out, &next_out, 0);
         size_t have = decompress->buffer_size - available_out;
-        if (have > 0) {
-            if (0 == available_out) {
+        if (have > 0)
+        {
+            if (0 == available_out)
+            {
                 decompress->buffer_size += have;
                 decompress->buffer = REALLOC(char, decompress->buffer,
                                              decompress->buffer_size);
@@ -196,24 +205,28 @@ http_content_decompress_write_br(struct http_content_decompress *decompress,
                 available_out = have;
                 next_out = (unsigned char *)decompress->buffer +
                            (decompress->buffer_size - have);
-            } else {
+            }
+            else
+            {
                 *outdata = decompress->buffer;
                 *outdata_len = have;
             }
         }
 
         if (ret == BROTLI_DECODER_RESULT_SUCCESS ||
-            ret == BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT) {
-                decompress->buffer =NULL;
-                decompress->buffer_size = 0;
+            ret == BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT)
+        {
+            decompress->buffer = NULL;
+            decompress->buffer_size = 0;
             return 0;
         }
 
-        if (ret == BROTLI_DECODER_RESULT_ERROR) {
-            //BrotliDecoderErrorCode errcode =
-                BrotliDecoderGetErrorCode(decompress->br_state);
-                *outdata = NULL;
-                *outdata_len = 0;
+        if (ret == BROTLI_DECODER_RESULT_ERROR)
+        {
+            // BrotliDecoderErrorCode errcode =
+            BrotliDecoderGetErrorCode(decompress->br_state);
+            *outdata = NULL;
+            *outdata_len = 0;
             return -1;
         }
 
@@ -234,20 +247,21 @@ int http_content_decompress_write(struct http_content_decompress *decompress,
     *outdata = NULL;
     *outdata_len = 0;
 
-    if(NULL == decompress->buffer ){
+    if (NULL == decompress->buffer)
+    {
         decompress->buffer = CALLOC(char, HTTP_DECOMPRESS_BUFFER_SIZE);
         assert(decompress->buffer);
         decompress->buffer_size = HTTP_DECOMPRESS_BUFFER_SIZE;
     }
 
     if (decompress->encoding == HTTP_CONTENT_ENCODING_GZIP ||
-        decompress->encoding == HTTP_CONTENT_ENCODING_DEFLATE) {
-        return http_content_decompress_write_zlib(decompress, indata, indata_len,
-                                                  outdata, outdata_len);
+        decompress->encoding == HTTP_CONTENT_ENCODING_DEFLATE)
+    {
+        return http_content_decompress_write_zlib(decompress, indata, indata_len, outdata, outdata_len);
     }
-    if (decompress->encoding == HTTP_CONTENT_ENCODING_BR) {
-        return http_content_decompress_write_br(decompress, indata, indata_len,
-                                                outdata, outdata_len);
+    if (decompress->encoding == HTTP_CONTENT_ENCODING_BR)
+    {
+        return http_content_decompress_write_br(decompress, indata, indata_len, outdata, outdata_len);
     }
     assert(0);
     return -1;
diff --git a/decoders/http/http_content_decompress.h b/decoders/http/http_content_decompress.h
index 3c2ba48..7f2c221 100644
--- a/decoders/http/http_content_decompress.h
+++ b/decoders/http/http_content_decompress.h
@@ -1,16 +1,4 @@
-/*
-**********************************************************************************************
-*	File: http_content_decompress.h
-*   Description: 
-*	Authors: LuWenPeng <[email protected]>
-*	Date:    2022-10-31
-*   Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
-***********************************************************************************************
-*/
-
-
-#ifndef _HTTP_CONTENT_DECOMPRESS_H_
-#define _HTTP_CONTENT_DECOMPRESS_H_
+#pragma once
 
 #ifdef __cplusplus
 extern "C"
@@ -19,34 +7,30 @@ extern "C"
 
 #include <stddef.h>
 
-enum http_content_encoding {
-    HTTP_CONTENT_ENCODING_NONE = 0,
-    HTTP_CONTENT_ENCODING_GZIP = 1 << 1,
-    HTTP_CONTENT_ENCODING_DEFLATE = 1 << 2,
-    HTTP_CONTENT_ENCODING_BR = 1 << 3,
-};
+    enum http_content_encoding
+    {
+        HTTP_CONTENT_ENCODING_NONE = 0,
+        HTTP_CONTENT_ENCODING_GZIP = 1 << 1,
+        HTTP_CONTENT_ENCODING_DEFLATE = 1 << 2,
+        HTTP_CONTENT_ENCODING_BR = 1 << 3,
+    };
 
-struct http_content_decompress;
+    struct http_content_decompress;
 
-enum http_content_encoding
-http_content_encoding_str2int(const char *content_encoding);
+    enum http_content_encoding http_content_encoding_str2int(const char *content_encoding);
 
-const char *
-http_content_encoding_int2str(enum http_content_encoding content_encoding);
+    const char *http_content_encoding_int2str(enum http_content_encoding content_encoding);
 
-struct http_content_decompress *
-http_content_decompress_create(enum http_content_encoding encoding);
+    struct http_content_decompress *http_content_decompress_create(enum http_content_encoding encoding);
 
-void http_content_decompress_destroy(struct http_content_decompress *decompress);
+    void http_content_decompress_destroy(struct http_content_decompress *decompress);
 
-// return   0 : success
-// return  -1 : error
-int http_content_decompress_write(struct http_content_decompress *decompress,
-                                  const char *indata, size_t indata_len,
-                                  char **outdata, size_t *outdata_len);
+    // return   0 : success
+    // return  -1 : error
+    int http_content_decompress_write(struct http_content_decompress *decompress,
+                                      const char *indata, size_t indata_len,
+                                      char **outdata, size_t *outdata_len);
 
 #ifdef __cplusplus
 }
 #endif
-
-#endif
\ No newline at end of file
diff --git a/decoders/http/http_decoder.cpp b/decoders/http/http_decoder.cpp
index 218c508..f1c65f7 100644
--- a/decoders/http/http_decoder.cpp
+++ b/decoders/http/http_decoder.cpp
@@ -3,7 +3,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 
@@ -123,7 +123,7 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         /* llhttp always call on_message_begin() even if llhttp_execute() error!!! */
         msg = http_message_new(HTTP_TRANSACTION_START, queue, queue_idx, HTTP_REQUEST);
         session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
-        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TRANSACTION_NEW, 1);
+        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_TRANSACTION_NEW, 1);
         break;
     case HTTP_EVENT_REQ_LINE:
         msg = http_message_new(HTTP_MESSAGE_REQ_LINE, queue, queue_idx, HTTP_REQUEST);
@@ -131,7 +131,7 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         if (httpd_tunnel_identify(httpd_env, FLOW_DIRECTION_C2S, half_data))
         {
             exdata->tunnel_state = HTTP_TUN_C2S_HDR_START;
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TUNNEL, 1);
+            // http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TUNNEL, 1);
         }
         if (httpd_is_tunnel_session(httpd_env, exdata))
         {
@@ -157,11 +157,11 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
 
         int tot_c2s_headers = http_half_data_get_total_parsed_header_count(half_data);
-        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_HEADERS_C2S, tot_c2s_headers);
+        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_HEADERS, tot_c2s_headers);
 
         hstring tmp_url = {};
         http_half_data_get_url(half_data, &tmp_url);
-        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_URL_BYTES, tmp_url.iov_len);
+        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_URL_BYTES, tmp_url.iov_len);
     }
     break;
     case HTTP_EVENT_REQ_BODY_BEGIN:
@@ -176,9 +176,10 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         http_half_get_lastest_decompress_buffer(half_data, &decompress_body);
         msg = http_body_message_new(HTTP_MESSAGE_REQ_BODY, queue, queue_idx, HTTP_REQUEST, &raw_body, &decompress_body);
         session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
-        if(decompress_body.iov_base != NULL){
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_ZIP_BYTES, raw_body.iov_len);
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_UNZIP_BYTES, decompress_body.iov_len);
+        if (decompress_body.iov_base != NULL)
+        {
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_ZIP_BYTES, raw_body.iov_len);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_UNZIP_BYTES, decompress_body.iov_len);
         }
     }
     break;
@@ -194,8 +195,8 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         {
             msg = http_message_new(HTTP_TRANSACTION_END, queue, queue_idx, HTTP_REQUEST);
             session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TRANSACTION_FREE, 1);
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_ASYMMETRY_TRANSACTION_C2S, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_TRANSACTION_FREE, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_ASYMMETRY_TRANSACTION, 1);
         }
         if (httpd_is_tunnel_session(httpd_env, exdata))
         {
@@ -285,7 +286,7 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
 
         int tot_s2c_headers = http_half_data_get_total_parsed_header_count(half_data);
-        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_HEADERS_S2C, tot_s2c_headers);
+        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_HEADERS, tot_s2c_headers);
 
         if (httpd_is_tunnel_session(httpd_env, exdata))
         {
@@ -304,13 +305,14 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
         hstring raw_body = {};
         http_decoder_half_data_get_raw_body(half_data, &raw_body);
         hstring decompress_body = {};
-        http_half_get_lastest_decompress_buffer(half_data, &decompress_body);        
+        http_half_get_lastest_decompress_buffer(half_data, &decompress_body);
         msg = http_body_message_new(HTTP_MESSAGE_RES_BODY, queue, queue_idx, HTTP_RESPONSE, &raw_body, &decompress_body);
         session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
-        if(decompress_body.iov_base != NULL){
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_ZIP_BYTES, raw_body.iov_len);
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_UNZIP_BYTES, decompress_body.iov_len);
-        }        
+        if (decompress_body.iov_base != NULL)
+        {
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_ZIP_BYTES, raw_body.iov_len);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_UNZIP_BYTES, decompress_body.iov_len);
+        }
     }
     break;
     case HTTP_EVENT_RES_BODY_END:
@@ -320,11 +322,11 @@ static void http_event_handler(enum http_event event, struct http_decoder_half_d
     case HTTP_EVENT_RES_END:
         msg = http_message_new(HTTP_TRANSACTION_END, queue, queue_idx, HTTP_RESPONSE);
         session_mq_publish_message(ev_ctx->ref_session, exdata->pub_topic_id, msg);
-        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TRANSACTION_FREE, 1);
+        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_TRANSACTION_FREE, 1);
         session_is_symmetric(ev_ctx->ref_session, &flow_flag);
         if (SESSION_SEEN_S2C_FLOW == flow_flag)
         {
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_ASYMMETRY_TRANSACTION_S2C, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_ASYMMETRY_TRANSACTION, 1);
         }
 
         http_half_update_state(half_data, event);
@@ -604,7 +606,7 @@ static struct http_decoder_exdata *httpd_session_exdata_new(struct session *sess
                                                                  httpd_env, req_start_seq, res_start_seq);
     // exdata->sub_topic_id = sub_topic_id;
     int thread_id = stellar_get_current_thread_index();
-    http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_SESSION_NEW, 1);
+    http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_SESSION_NEW, 1);
     return exdata;
 }
 
@@ -645,13 +647,13 @@ extern "C"
 
         if (SESSION_SEEN_C2S_FLOW == flow_flag)
         {
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_ASYMMETRY_SESSION_C2S, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_ASYMMETRY_SESSION, 1);
         }
         else if (SESSION_SEEN_S2C_FLOW == flow_flag)
         {
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_ASYMMETRY_SESSION_S2C, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_ASYMMETRY_SESSION, 1);
         }
-        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_SESSION_FREE, 1);
+        http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_SESSION_FREE, 1);
     }
 
     static void http_decoder_execute(struct session *sess, struct http_decoder_env *httpd_env, http_decoder_exdata *exdata, const char *payload, uint16_t payload_len)
@@ -669,21 +671,21 @@ extern "C"
         if (FLOW_DIRECTION_C2S == sess_dir)
         {
             cur_half = exdata->decoder->c2s_half;
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_BYTES_C2S, payload_len);
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TCP_SEG_C2S, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_BYTES, payload_len);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_C2S_TCP_SEG, 1);
         }
         else
         {
             cur_half = exdata->decoder->s2c_half;
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_BYTES_S2C, payload_len);
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_TCP_SEG_S2C, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_BYTES, payload_len);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_S2C_TCP_SEG, 1);
         }
 
         http_decoder_half_reinit(cur_half, exdata->queue, exdata->mempool, sess);
         int ret = http_decoder_half_parse(httpd_env->hd_cfg.proxy_enable, cur_half, payload, payload_len);
         if (ret < 0)
         {
-            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTPD_STAT_PARSE_ERR, 1);
+            http_decoder_stat_update(&httpd_env->hd_stat, thread_id, HTTP_STAT_PARSE_ERR, 1);
             stellar_session_plugin_dettach_current_session(sess);
         }
     }
@@ -742,7 +744,7 @@ extern "C"
             if (NULL == exdata)
             {
                 session_mq_ignore_message(sess, topic_id, httpd_env->plugin_id);
-                http_decoder_stat_update(&httpd_env->hd_stat, stellar_get_current_thread_index(), HTTPD_STAT_PARSE_ERR, 1);
+                http_decoder_stat_update(&httpd_env->hd_stat, stellar_get_current_thread_index(), HTTP_STAT_PARSE_ERR, 1);
                 return;
             }
             break;
@@ -750,7 +752,7 @@ extern "C"
         case HTTP_TUNNEL_CLOSING:
             if (NULL == exdata)
             {
-                http_decoder_stat_update(&httpd_env->hd_stat, stellar_get_current_thread_index(), HTTPD_STAT_PARSE_ERR, 1);
+                http_decoder_stat_update(&httpd_env->hd_stat, stellar_get_current_thread_index(), HTTP_STAT_PARSE_ERR, 1);
                 return;
             }
             if (exdata->in_tunnel_is_http)
@@ -1086,23 +1088,20 @@ extern "C"
         }
         /**
          * @brief If the body hasn't been compressed, same as http_message_raw_body_get0().
-         * 
-        */    
-        
-        if (HTTP_MESSAGE_REQ_BODY_START == msg->type 
-         || HTTP_MESSAGE_REQ_BODY == msg->type
-         || HTTP_MESSAGE_REQ_BODY_END == msg->type)
+         *
+         */
+
+        if (HTTP_MESSAGE_REQ_BODY_START == msg->type || HTTP_MESSAGE_REQ_BODY == msg->type || HTTP_MESSAGE_REQ_BODY_END == msg->type)
         {
             ref_data = msg->ref_queue->array[msg->queue_index].req_data;
         }
-        else if (HTTP_MESSAGE_RES_BODY_START == msg->type
-        || HTTP_MESSAGE_RES_BODY == msg->type
-        || HTTP_MESSAGE_RES_BODY_END == msg->type)
+        else if (HTTP_MESSAGE_RES_BODY_START == msg->type || HTTP_MESSAGE_RES_BODY == msg->type || HTTP_MESSAGE_RES_BODY_END == msg->type)
         {
             ref_data = msg->ref_queue->array[msg->queue_index].res_data;
         }
         ecode = http_half_data_get_content_encoding(ref_data);
-        if(ref_data != NULL && HTTP_CONTENT_ENCODING_NONE != ecode){
+        if (ref_data != NULL && HTTP_CONTENT_ENCODING_NONE != ecode)
+        {
             goto fail;
         }
 
diff --git a/decoders/http/http_decoder_half.cpp b/decoders/http/http_decoder_half.cpp
index bea97d0..a505fac 100644
--- a/decoders/http/http_decoder_half.cpp
+++ b/decoders/http/http_decoder_half.cpp
@@ -2,7 +2,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <arpa/inet.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 #include "llhttp.h"
 #include "uthash/utlist.h"
 
@@ -85,8 +85,7 @@ void http_half_decompress_buffer_free(struct http_decoder_half_data *data, hstri
     struct http_decompress_buffer *el, *tmp;
     DL_FOREACH_SAFE(data->decompress_buffer_list, el, tmp)
     {
-        if (el->iov.iov_base == decompress_body->iov_base
-        && el->iov.iov_len == decompress_body->iov_len)
+        if (el->iov.iov_base == decompress_body->iov_base && el->iov.iov_len == decompress_body->iov_len)
         {
             DL_DELETE(data->decompress_buffer_list, el);
             if (el->iov.iov_base)
@@ -157,7 +156,7 @@ static void http_decoder_half_data_decompress(struct http_decoder_half_data *dat
         return;
     }
 
-    if(local_outdata!= NULL && local_outdata_len > 0)
+    if (local_outdata != NULL && local_outdata_len > 0)
     {
         struct http_decompress_buffer *decompress_buffer = CALLOC(struct http_decompress_buffer, 1);
         assert(decompress_buffer);
@@ -873,7 +872,7 @@ static void http_decoder_half_decompress_buf_free(struct http_decoder_half_data
         if (el->iov.iov_base != NULL)
         {
             FREE(el->iov.iov_base);
-        }        
+        }
         FREE(el);
     }
     ref_data->decompress_buffer_list = NULL;
@@ -1208,7 +1207,7 @@ void http_half_get_max_transaction_seq(struct http_decoder_exdata *exdata, long
 
 enum http_content_encoding http_half_data_get_content_encoding(struct http_decoder_half_data *hf_data)
 {
-    if(NULL == hf_data)
+    if (NULL == hf_data)
     {
         return HTTP_CONTENT_ENCODING_NONE;
     }
diff --git a/decoders/http/http_decoder_half.h b/decoders/http/http_decoder_half.h
index 5deeaa6..adf61d1 100644
--- a/decoders/http/http_decoder_half.h
+++ b/decoders/http/http_decoder_half.h
@@ -1,15 +1,14 @@
-#ifndef _HTTP_DECODER_HALF_H_
-#define _HTTP_DECODER_HALF_H_
-
+#pragma once
 #include <stddef.h>
 #include "stellar/session.h"
 #include "stellar/http.h"
 #include "http_content_decompress.h"
 #include "http_decoder_result_queue.h"
-#include "llhttp.h"
+#include <llhttp.h>
 
 // only one http event is fired at a time
-enum http_event {
+enum http_event
+{
     HTTP_EVENT_REQ_INIT = 1 << 1,
     HTTP_EVENT_REQ_LINE = 1 << 2,
     HTTP_EVENT_REQ_HDR = 1 << 3,
@@ -29,7 +28,8 @@ enum http_event {
     HTTP_EVENT_RES_END = 1 << 16,
 };
 
-struct http_event_context {
+struct http_event_context
+{
     struct http_decoder_exdata *ref_httpd_ctx;
     nmx_pool_t *ref_mempool;
     struct session *ref_session;
@@ -43,12 +43,12 @@ typedef void http_event_cb(enum http_event event, struct http_decoder_half_data
                            struct http_event_context *ev_ctx, void *httpd_plugin_env);
 
 struct http_decoder_half *
-http_decoder_half_new(struct http_decoder_exdata *hd_ctx, nmx_pool_t *mempool, http_event_cb *event_cb, 
-                    enum llhttp_type http_type, int decompress_switch, struct http_decoder_env *httpd_env,long long start_seq);
+http_decoder_half_new(struct http_decoder_exdata *hd_ctx, nmx_pool_t *mempool, http_event_cb *event_cb,
+                      enum llhttp_type http_type, int decompress_switch, struct http_decoder_env *httpd_env, long long start_seq);
 
 void http_decoder_half_free(nmx_pool_t *mempool, struct http_decoder_half *half);
 
-void http_decoder_half_reinit(struct http_decoder_half *half, 
+void http_decoder_half_reinit(struct http_decoder_half *half,
                               struct http_decoder_result_queue *queue,
                               nmx_pool_t *mempool, struct session *sess);
 
@@ -56,7 +56,7 @@ int http_decoder_half_parse(int proxy_enable, struct http_decoder_half *half, co
 
 long long http_decoder_half_trans_count(struct http_decoder_half *half);
 
-//http decoder half data API
+// http decoder half data API
 struct http_decoder_half_data *
 http_decoder_half_data_new(nmx_pool_t *mempool);
 
@@ -90,16 +90,15 @@ void http_decoder_join_url(struct http_decoder_half_data *hfdata,
                            nmx_pool_t *mempool,
                            const struct http_header *host_hdr);
 int http_decoder_join_url_finally(struct http_event_context *ev_ctx,
-                                   struct http_decoder_half_data *hfdata,
-                                   nmx_pool_t *mempool);
+                                  struct http_decoder_half_data *hfdata,
+                                  nmx_pool_t *mempool);
 int http_half_data_get_url(struct http_decoder_half_data *res_data, hstring *url);
 int http_half_data_get_transaction_seq(struct http_decoder_half_data *hf_data);
 
-void http_half_data_update_commit_index(struct http_decoder_half_data * half_data);
+void http_half_data_update_commit_index(struct http_decoder_half_data *half_data);
 void http_half_pre_context_free(struct session *sess, struct http_decoder_exdata *exdata);
-void http_half_update_state(struct http_decoder_half_data *hf_data, enum http_event state);      
-int http_half_data_get_total_parsed_header_count(struct http_decoder_half_data * half_data);      
-void http_half_get_max_transaction_seq(struct http_decoder_exdata *exdata, long long *max_req_seq, long long *max_res_seq);   
+void http_half_update_state(struct http_decoder_half_data *hf_data, enum http_event state);
+int http_half_data_get_total_parsed_header_count(struct http_decoder_half_data *half_data);
+void http_half_get_max_transaction_seq(struct http_decoder_exdata *exdata, long long *max_req_seq, long long *max_res_seq);
 
-enum http_content_encoding http_half_data_get_content_encoding(struct http_decoder_half_data *hf_data);
-#endif
\ No newline at end of file
+enum http_content_encoding http_half_data_get_content_encoding(struct http_decoder_half_data *hf_data);
\ No newline at end of file
diff --git a/decoders/http/http_decoder_inc.h b/decoders/http/http_decoder_inc.h
deleted file mode 100644
index 52c364f..0000000
--- a/decoders/http/http_decoder_inc.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
-**********************************************************************************************
-*	File: http_decoder_inc.h
-*   Description: 
-*	Authors: Liu WenTan <[email protected]>
-*	Date:    2024-01-10
-*   Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
-***********************************************************************************************
-*/
-
-#ifndef _HTTP_DECODER_INC_H_
-#define _HTTP_DECODER_INC_H_
-
-#ifndef __USE_MISC
-#define __USE_MISC 1
-#endif
-
-#include <cstddef>
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-#include <bits/types/struct_iovec.h>
-#include "stellar/stellar.h"
-#include "stellar/layer.h"
-#include "stellar/packet.h"
-#include "stellar/utils.h"
-#include "stellar/session.h"
-#include "stellar/stellar_mq.h"
-#include "stellar/stellar_exdata.h"
-
-#include "nmx_pool/nmx_palloc.h"
-#include "stellar/utils.h"
-#include "stellar/http.h"
-#include "http_decoder_result_queue.h"
-#include "http_decoder_half.h"
-#include "http_decoder_table.h"
-#include "http_decoder_result_queue.h"
-#include "http_decoder_utils.h"
-#include "http_decoder_stat.h"
-#include "http_decoder_tunnel.h"
-#include "fieldstat/fieldstat_easy.h"
-#include "toml/toml.h"
-
-#ifndef likely
-#define likely(x)    __builtin_expect((x), 1)
-#endif
-#ifndef unlikely
-#define unlikely(x)  __builtin_expect((x), 0)
-#endif
-
-#define MEMPOOL_CALLOC(pool, type, number) ((type *)nmx_pcalloc(pool, sizeof(type) * number))
-#define MEMPOOL_REALLOC(pool)
-#define MEMPOOL_FREE(pool, p) nmx_pfree(pool, p)
-
-#define ENABLE_MEMPOOL 0
-#if ENABLE_MEMPOOL
-#define HD_CALLOC(pool, type, number) MEMPOOL_CALLOC(pool, number, type)
-#define HD_FREE(pool, p) MEMPOOL_FREE(pool, p)
-#else
-#define HD_CALLOC(pool, type, number) CALLOC(type, number)
-#define HD_FREE(pool, p) FREE(p)
-#endif
-
-#define HTTP_IDENTIFY_LEN 16
-#define HD_RESULT_QUEUE_LEN 16
-
-#define DEFAULT_STAT_OUTPUT_INTERVAL 1
-#define DEFAULT_STAT_INTERVAL_PKTS 1000
-#define DEFAULT_MEMPOOL_SIZE (32 * 1024)
-
-#define HTTPD_CFG_FILE   "./etc/http/http_decoder.toml"
-#define FILEDSTAT_OUTPUT_FILE   "./metrics/http_decoder_fs4.json"
-
-#define HTTP_CTX_NOT_HTTP "__NOT_HTTP_SESS__"
-#define HTTP_CTX_IS_HTTP  "__FAKE_HTTP_CTX__"
-
-struct http_decoder_config
-{
-    int decompress_switch;
-    int stat_interval_pkts; // call fieldstat_incrby every stat_interval_pkts
-    int stat_output_interval;
-    int proxy_enable;
-    size_t result_queue_len; // per session result queue length
-    size_t mempool_size;     // per session mempool size
-};
-
-/**
- * NOTE: http_message don't have the ownership of data
- */
-struct http_message
-{
-    uint8_t flow_type;
-    enum http_message_type type;
-    size_t queue_index;
-    struct http_decoder_result_queue *ref_queue;
-    hstring raw_payload;//cause tcp reorder, maybe receive many tcp segments for one packet
-    hstring decompress_payload;
-    hstring tunnel_payload;
-};
-
-struct http_decoder
-{
-    struct http_decoder_half *c2s_half;
-    struct http_decoder_half *s2c_half;
-};
-
-enum httpd_topic_index{
-    HTTPD_TOPIC_TCP_STREAM_INDEX = 0,
-    HTTPD_TOPIC_HTTP_MSG_INDEX,
-    HTTPD_TOPIC_HTTP_TUNNEL_INDEX,
-    HTTPD_TOPIC_INDEX_MAX,
-};  
-
-struct http_decoder_exdata
-{
-    int sub_topic_id; //tcp_stream
-    int pub_topic_id; //http message or http tunnel msg
-    struct http_decoder_result_queue *queue;
-    struct http_decoder *decoder;
-    nmx_pool_t *mempool;
-    enum http_tunnel_state tunnel_state; 
-    int in_tunnel_is_http;
-};
-
-// struct http_decoder_context{
-//     int array_size;
-//     struct http_decoder_exdata **exdata_array; //raw tcp stream for http msg;  http tunnel for inner http transaction. 
-// };
-
-struct http_topic_exdata_compose{
-    enum httpd_topic_index index;
-    const char *topic_name;
-    on_session_msg_cb_func *on_msg_cb;
-    stellar_msg_free_cb_func *msg_free_cb;
-    const char *exdata_name;
-    stellar_exdata_free *exdata_free_cb;
-    int sub_topic_id; //as consumer 
-    int exdata_id;
-};
-
-struct http_decoder_env
-{
-    struct stellar *st;
-    int plugin_id;
-    struct http_topic_exdata_compose topic_exdata_compose[HTTPD_TOPIC_INDEX_MAX];
-    struct http_decoder_config hd_cfg;
-    struct http_decoder_stat hd_stat;
-};
-
-struct http_message;
-
-struct http_message *http_message_new(enum http_message_type type, struct http_decoder_result_queue *queue,
-                                    int queue_index, unsigned char flow_type);
-struct http_message *http_body_message_new(enum http_message_type type, struct http_decoder_result_queue *queue,
-                                           int queue_index, uint8_t flow_type, hstring *raw_payload);                                    
-int http_topic_exdata_compose_get_index(const struct http_decoder_env *httpd_env, int by_topic_id);
-#ifdef __cplusplus
-}
-#endif
-
-#endif
\ No newline at end of file
diff --git a/decoders/http/http_decoder_private.h b/decoders/http/http_decoder_private.h
new file mode 100644
index 0000000..8c071e8
--- /dev/null
+++ b/decoders/http/http_decoder_private.h
@@ -0,0 +1,152 @@
+
+#pragma once
+
+#ifndef __USE_MISC
+#define __USE_MISC 1
+#endif
+
+#include <cstddef>
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+#include <bits/types/struct_iovec.h>
+#include "stellar/stellar.h"
+#include "stellar/layer.h"
+#include "stellar/packet.h"
+#include "stellar/utils.h"
+#include "stellar/session.h"
+#include "stellar/stellar_mq.h"
+#include "stellar/stellar_exdata.h"
+
+#include "nmx_pool/nmx_palloc.h"
+#include "stellar/utils.h"
+#include "stellar/http.h"
+#include "http_decoder_result_queue.h"
+#include "http_decoder_half.h"
+#include "http_decoder_table.h"
+#include "http_decoder_result_queue.h"
+#include "http_decoder_utils.h"
+#include "http_decoder_stat.h"
+#include "http_decoder_tunnel.h"
+#include "fieldstat/fieldstat_easy.h"
+#include "toml/toml.h"
+
+#ifndef likely
+#define likely(x) __builtin_expect((x), 1)
+#endif
+#ifndef unlikely
+#define unlikely(x) __builtin_expect((x), 0)
+#endif
+
+#define MEMPOOL_CALLOC(pool, type, number) ((type *)nmx_pcalloc(pool, sizeof(type) * number))
+#define MEMPOOL_REALLOC(pool)
+#define MEMPOOL_FREE(pool, p) nmx_pfree(pool, p)
+
+#define ENABLE_MEMPOOL 0
+#if ENABLE_MEMPOOL
+#define HD_CALLOC(pool, type, number) MEMPOOL_CALLOC(pool, number, type)
+#define HD_FREE(pool, p) MEMPOOL_FREE(pool, p)
+#else
+#define HD_CALLOC(pool, type, number) CALLOC(type, number)
+#define HD_FREE(pool, p) FREE(p)
+#endif
+
+#define HTTP_IDENTIFY_LEN 16
+#define HD_RESULT_QUEUE_LEN 16
+
+#define DEFAULT_STAT_OUTPUT_INTERVAL 1
+#define DEFAULT_STAT_INTERVAL_PKTS 1000
+#define DEFAULT_MEMPOOL_SIZE (32 * 1024)
+
+#define HTTPD_CFG_FILE "./etc/http/http_decoder.toml"
+#define FILEDSTAT_OUTPUT_FILE "./metrics/http_decoder_fs4.json"
+
+#define HTTP_CTX_NOT_HTTP "__NOT_HTTP_SESS__"
+#define HTTP_CTX_IS_HTTP "__FAKE_HTTP_CTX__"
+
+    struct http_decoder_config
+    {
+        int decompress_switch;
+        int stat_interval_pkts; // call fieldstat_incrby every stat_interval_pkts
+        int stat_output_interval;
+        int proxy_enable;
+        size_t result_queue_len; // per session result queue length
+        size_t mempool_size;     // per session mempool size
+    };
+
+    /**
+     * NOTE: http_message don't have the ownership of data
+     */
+    struct http_message
+    {
+        uint8_t flow_type;
+        enum http_message_type type;
+        size_t queue_index;
+        struct http_decoder_result_queue *ref_queue;
+        hstring raw_payload; // cause tcp reorder, maybe receive many tcp segments for one packet
+        hstring decompress_payload;
+        hstring tunnel_payload;
+    };
+
+    struct http_decoder
+    {
+        struct http_decoder_half *c2s_half;
+        struct http_decoder_half *s2c_half;
+    };
+
+    enum httpd_topic_index
+    {
+        HTTPD_TOPIC_TCP_STREAM_INDEX = 0,
+        HTTPD_TOPIC_HTTP_MSG_INDEX,
+        HTTPD_TOPIC_HTTP_TUNNEL_INDEX,
+        HTTPD_TOPIC_INDEX_MAX,
+    };
+
+    struct http_decoder_exdata
+    {
+        int sub_topic_id; // tcp_stream
+        int pub_topic_id; // http message or http tunnel msg
+        struct http_decoder_result_queue *queue;
+        struct http_decoder *decoder;
+        nmx_pool_t *mempool;
+        enum http_tunnel_state tunnel_state;
+        int in_tunnel_is_http;
+    };
+
+    // struct http_decoder_context{
+    //     int array_size;
+    //     struct http_decoder_exdata **exdata_array; //raw tcp stream for http msg;  http tunnel for inner http transaction.
+    // };
+
+    struct http_topic_exdata_compose
+    {
+        enum httpd_topic_index index;
+        const char *topic_name;
+        on_session_msg_cb_func *on_msg_cb;
+        stellar_msg_free_cb_func *msg_free_cb;
+        const char *exdata_name;
+        stellar_exdata_free *exdata_free_cb;
+        int sub_topic_id; // as consumer
+        int exdata_id;
+    };
+
+    struct http_decoder_env
+    {
+        struct stellar *st;
+        int plugin_id;
+        struct http_topic_exdata_compose topic_exdata_compose[HTTPD_TOPIC_INDEX_MAX];
+        struct http_decoder_config hd_cfg;
+        struct http_decoder_stat hd_stat;
+    };
+
+    struct http_message;
+
+    struct http_message *http_message_new(enum http_message_type type, struct http_decoder_result_queue *queue,
+                                          int queue_index, unsigned char flow_type);
+    struct http_message *http_body_message_new(enum http_message_type type, struct http_decoder_result_queue *queue,
+                                               int queue_index, uint8_t flow_type, hstring *raw_payload);
+    int http_topic_exdata_compose_get_index(const struct http_decoder_env *httpd_env, int by_topic_id);
+#ifdef __cplusplus
+}
+#endif
diff --git a/decoders/http/http_decoder_result_queue.cpp b/decoders/http/http_decoder_result_queue.cpp
index 6a5e003..5695138 100644
--- a/decoders/http/http_decoder_result_queue.cpp
+++ b/decoders/http/http_decoder_result_queue.cpp
@@ -1,14 +1,5 @@
-/*
-**********************************************************************************************
-*	File: http_decoder_result_queue.c
-*   Description: 
-*	Authors: Liuwentan <[email protected]>
-*	Date:    2024-01-15
-*   Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
-***********************************************************************************************
-*/
 #include <assert.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
 struct http_decoder_result_queue *
 http_decoder_result_queue_new(nmx_pool_t *mempool, size_t queue_size)
@@ -28,23 +19,28 @@ http_decoder_result_queue_new(nmx_pool_t *mempool, size_t queue_size)
 
 void http_decoder_result_queue_free(nmx_pool_t *mempool, struct http_decoder_result_queue *queue)
 {
-	if (NULL == queue) {
-		return;
+    if (NULL == queue)
+    {
+        return;
     }
 
-    if (queue->array != NULL) {
-        for (size_t i = 0; i < queue->queue_size; i++) {
-            if (queue->array[i].req_data != NULL) {
-            	http_decoder_half_data_free(mempool, queue->array[i].req_data);
-				queue->array[i].req_data = NULL;
+    if (queue->array != NULL)
+    {
+        for (size_t i = 0; i < queue->queue_size; i++)
+        {
+            if (queue->array[i].req_data != NULL)
+            {
+                http_decoder_half_data_free(mempool, queue->array[i].req_data);
+                queue->array[i].req_data = NULL;
             }
 
-            if (queue->array[i].res_data != NULL) {
-            	http_decoder_half_data_free(mempool, queue->array[i].res_data);
-				queue->array[i].res_data = NULL;
+            if (queue->array[i].res_data != NULL)
+            {
+                http_decoder_half_data_free(mempool, queue->array[i].res_data);
+                queue->array[i].res_data = NULL;
             }
         }
-		MEMPOOL_FREE(mempool, queue->array);
+        MEMPOOL_FREE(mempool, queue->array);
     }
     MEMPOOL_FREE(mempool, queue);
 }
@@ -78,11 +74,13 @@ size_t http_decoder_result_queue_res_index(struct http_decoder_result_queue *que
 int http_decoder_result_queue_push_req(struct http_decoder_result_queue *queue,
                                        struct http_decoder_half_data *req_data)
 {
-    if (NULL == queue || NULL == req_data) {
+    if (NULL == queue || NULL == req_data)
+    {
         return -1;
     }
     assert(queue->array[queue->req_index].req_data == NULL);
-    if (queue->array[queue->req_index].req_data != NULL) {
+    if (queue->array[queue->req_index].req_data != NULL)
+    {
         return -1;
     }
     queue->array[queue->req_index].req_data = req_data;
@@ -92,11 +90,13 @@ int http_decoder_result_queue_push_req(struct http_decoder_result_queue *queue,
 int http_decoder_result_queue_push_res(struct http_decoder_result_queue *queue,
                                        struct http_decoder_half_data *res_data)
 {
-    if (NULL == queue || NULL == res_data) {
+    if (NULL == queue || NULL == res_data)
+    {
         return -1;
     }
     assert(queue->array[queue->res_index].res_data == NULL);
-    if (queue->array[queue->res_index].res_data != NULL) {
+    if (queue->array[queue->res_index].res_data != NULL)
+    {
         return -1;
     }
 
@@ -107,7 +107,8 @@ int http_decoder_result_queue_push_res(struct http_decoder_result_queue *queue,
 struct http_decoder_half_data *
 http_decoder_result_queue_pop_req(struct http_decoder_result_queue *queue)
 {
-    if (NULL == queue) {
+    if (NULL == queue)
+    {
         return NULL;
     }
     struct http_decoder_half_data *req_data = queue->array[queue->req_index].req_data;
@@ -118,7 +119,8 @@ http_decoder_result_queue_pop_req(struct http_decoder_result_queue *queue)
 struct http_decoder_half_data *
 http_decoder_result_queue_pop_res(struct http_decoder_result_queue *queue)
 {
-    if (NULL == queue) {
+    if (NULL == queue)
+    {
         return NULL;
     }
 
@@ -130,7 +132,8 @@ http_decoder_result_queue_pop_res(struct http_decoder_result_queue *queue)
 struct http_decoder_half_data *
 http_decoder_result_queue_peek_req(struct http_decoder_result_queue *queue)
 {
-    if (NULL == queue) {
+    if (NULL == queue)
+    {
         return NULL;
     }
     assert(queue->req_index < queue->queue_size);
@@ -140,7 +143,8 @@ http_decoder_result_queue_peek_req(struct http_decoder_result_queue *queue)
 struct http_decoder_half_data *
 http_decoder_result_queue_peek_res(struct http_decoder_result_queue *queue)
 {
-    if (NULL == queue) {
+    if (NULL == queue)
+    {
         return NULL;
     }
     assert(queue->res_index < queue->queue_size);
diff --git a/decoders/http/http_decoder_result_queue.h b/decoders/http/http_decoder_result_queue.h
index 97d68a6..a6ff0ca 100644
--- a/decoders/http/http_decoder_result_queue.h
+++ b/decoders/http/http_decoder_result_queue.h
@@ -1,29 +1,21 @@
-/*
-**********************************************************************************************
-*	File: http_decoder_result_queue.h
-*   Description: 
-*	Authors: Liuwentan <[email protected]>
-*	Date:    2024-01-15
-*   Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
-***********************************************************************************************
-*/
-#ifndef _HTTP_DECODER_RESULT_QUEUE_H_
-#define _HTTP_DECODER_RESULT_QUEUE_H_
+#pragma once
 
 #include <stddef.h>
 #include "nmx_pool/nmx_palloc.h"
 #include "http_decoder_half.h"
 
-struct http_decoder_result {
+struct http_decoder_result
+{
     struct http_decoder_half_data *req_data;
     struct http_decoder_half_data *res_data;
 };
 
-struct http_decoder_result_queue {
-	size_t req_index;
-	size_t res_index;
-	size_t queue_size;
-	struct http_decoder_result *array;
+struct http_decoder_result_queue
+{
+    size_t req_index;
+    size_t res_index;
+    size_t queue_size;
+    struct http_decoder_result *array;
 };
 
 struct http_decoder_result_queue *
@@ -57,5 +49,3 @@ http_decoder_result_queue_peek_req(struct http_decoder_result_queue *queue);
 
 struct http_decoder_half_data *
 http_decoder_result_queue_peek_res(struct http_decoder_result_queue *queue);
-
-#endif
\ No newline at end of file
diff --git a/decoders/http/http_decoder_stat.cpp b/decoders/http/http_decoder_stat.cpp
index f616658..dec6c91 100644
--- a/decoders/http/http_decoder_stat.cpp
+++ b/decoders/http/http_decoder_stat.cpp
@@ -2,41 +2,44 @@
 #include <stdio.h>
 #include <pthread.h>
 #include <unistd.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
-static const struct hd_stat_config_tuple g_httpd_stat_tuple[HTTPD_STAT_MAX] = 
-{
-    {HTTPD_STAT_BYTES_C2S, "bytes_c2s"},
-    {HTTPD_STAT_BYTES_S2C, "bytes_s2c"},
-    {HTTPD_STAT_TCP_SEG_C2S, "tcp_seg_c2s"},
-    {HTTPD_STAT_TCP_SEG_S2C, "tcp_seg_s2c"},
-    {HTTPD_STAT_HEADERS_C2S, "headers_c2s"},
-    {HTTPD_STAT_HEADERS_S2C, "headers_s2c"},
-    {HTTPD_STAT_ZIP_BYTES, "zip_bytes"},
-    {HTTPD_STAT_UNZIP_BYTES, "unzip_bytes"},
-    {HTTPD_STAT_URL_BYTES, "url_bytes"},
-    {HTTPD_STAT_SESSION_NEW, "session_new"},
-    {HTTPD_STAT_SESSION_FREE, "session_free"},
-    {HTTPD_STAT_SESSION_EXCEPTION, "sess_exception"},
-    {HTTPD_STAT_TUNNEL, "tunnel"},
-    {HTTPD_STAT_TRANSACTION_NEW, "trans_new"},
-    {HTTPD_STAT_TRANSACTION_FREE, "trans_free"},
-    {HTTPD_STAT_ASYMMETRY_SESSION_C2S, "asymmetry_sess_c2s"},
-    {HTTPD_STAT_ASYMMETRY_SESSION_S2C, "asymmetry_sess_s2c"},
-    {HTTPD_STAT_ASYMMETRY_TRANSACTION_C2S, "asymmetry_trans_c2s"},
-    {HTTPD_STAT_ASYMMETRY_TRANSACTION_S2C, "asymmetry_trans_s2c"},
-    {HTTPD_STAT_PARSE_ERR, "parse_err"},
-}; 
+static const struct hd_stat_config_tuple g_httpd_stat_tuple[HTTP_STAT_MAX] =
+    {
+        {HTTP_C2S_BYTES, "http_c2s_bytes"},
+        {HTTP_S2C_BYTES, "http_s2c_bytes"},
+        {HTTP_C2S_TCP_SEG, "http_c2s_tcp_seg"},
+        {HTTP_S2C_TCP_SEG, "http_s2c_tcp_seg"},
+        {HTTP_C2S_HEADERS, "http_c2s_headers"},
+        {HTTP_S2C_HEADERS, "http_s2c_headers"},
+        {HTTP_C2S_ZIP_BYTES, "http_c2s_zip_bytes"},
+        {HTTP_S2C_ZIP_BYTES, "http_s2c_zip_bytes"},
+        {HTTP_C2S_UNZIP_BYTES, "http_c2s_unzip_bytes"},
+        {HTTP_S2C_UNZIP_BYTES, "http_s2c_unzip_bytes"},
+        {HTTP_URL_BYTES, "http_url_bytes"},
+        {HTTP_SESSION_NEW, "http_session_new"},
+        {HTTP_SESSION_FREE, "http_session_free"},
+        {HTTP_TRANSACTION_NEW, "http_transaction_new"},
+        {HTTP_TRANSACTION_FREE, "http_transaction_free"},
+        {HTTP_C2S_ASYMMETRY_SESSION, "http_c2s_asymmetry_sess"},
+        {HTTP_S2C_ASYMMETRY_SESSION, "http_s2c_asymmetry_sess"},
+        {HTTP_C2S_ASYMMETRY_TRANSACTION, "http_c2s_asymmetry_trans"},
+        {HTTP_S2C_ASYMMETRY_TRANSACTION, "http_s2c_asymmetry_trans"},
+        {HTTP_STAT_PARSE_ERR, "http_parse_error"},
+};
 
 void http_decoder_stat_free(struct http_decoder_stat *hd_stat)
 {
-    if(hd_stat->timer_pid != 0){
+    if (hd_stat->timer_pid != 0)
+    {
         pthread_cancel(hd_stat->timer_pid);
     }
-    if(hd_stat->stats != NULL){
+    if (hd_stat->stats != NULL)
+    {
         free(hd_stat->stats);
     }
-    if(hd_stat->fse != NULL){
+    if (hd_stat->fse != NULL)
+    {
         fieldstat_easy_free(hd_stat->fse);
     }
 }
@@ -46,7 +49,8 @@ static void *httpd_stat_timer_thread(void *arg)
     pthread_setname_np(pthread_self(), "http_decoder_timer_thread");
     struct http_decoder_stat *hd_stat = (struct http_decoder_stat *)arg;
     struct timespec res;
-    while(1){
+    while (1)
+    {
         clock_gettime(CLOCK_MONOTONIC, &res);
         hd_stat->current_time_ms = (res.tv_sec * 1000) + (res.tv_nsec / 1000000);
         usleep(800);
@@ -56,8 +60,9 @@ static void *httpd_stat_timer_thread(void *arg)
 
 int http_decoder_stat_init(struct http_decoder_stat *hd_stat, int thread_max, int stat_interval_pkts, int stat_interval_time)
 {
-    assert(sizeof(g_httpd_stat_tuple)/sizeof(struct hd_stat_config_tuple) == HTTPD_STAT_MAX);
-    if(sizeof(g_httpd_stat_tuple)/sizeof(struct hd_stat_config_tuple) != HTTPD_STAT_MAX){
+    assert(sizeof(g_httpd_stat_tuple) / sizeof(struct hd_stat_config_tuple) == HTTP_STAT_MAX);
+    if (sizeof(g_httpd_stat_tuple) / sizeof(struct hd_stat_config_tuple) != HTTP_STAT_MAX)
+    {
         fprintf(stderr, "enum http_decoder_stat_type number not match with g_httpd_stat_tuple!");
         return -1;
     }
@@ -68,7 +73,7 @@ int http_decoder_stat_init(struct http_decoder_stat *hd_stat, int thread_max, in
         return -1;
     }
 
-    for(int i = 0; i < HTTPD_STAT_MAX; i++)
+    for (int i = 0; i < HTTP_STAT_MAX; i++)
     {
         hd_stat->field_stat_id[i] = fieldstat_easy_register_counter(hd_stat->fse, g_httpd_stat_tuple[i].name);
         if (hd_stat->field_stat_id[i] < 0)
@@ -79,13 +84,13 @@ int http_decoder_stat_init(struct http_decoder_stat *hd_stat, int thread_max, in
             return -1;
         }
     }
-   
+
     int ret = fieldstat_easy_enable_auto_output(hd_stat->fse, FILEDSTAT_OUTPUT_FILE, stat_interval_time);
     if (ret < 0)
     {
         fprintf(stderr, "fieldstat_easy_enable_auto_output failed.");
         fieldstat_easy_free(hd_stat->fse);
-        hd_stat->fse = NULL;        
+        hd_stat->fse = NULL;
         return -1;
     }
     hd_stat->stats = (struct hd_statistics *)calloc(thread_max, sizeof(struct hd_statistics));
@@ -100,9 +105,10 @@ void http_decoder_stat_update(struct http_decoder_stat *hd_stat, int thread_id,
 {
     assert(hd_stat);
     assert(thread_id >= 0);
-    assert(type < HTTPD_STAT_MAX);
+    assert(type < HTTP_STAT_MAX);
 
-    if(unlikely(hd_stat->stats == NULL)){
+    if (unlikely(hd_stat->stats == NULL))
+    {
         return;
     }
 
@@ -111,11 +117,11 @@ void http_decoder_stat_update(struct http_decoder_stat *hd_stat, int thread_id,
     cur_hds->counter[type] += value;
     cur_hds->batch[type]++;
 
-    if(cur_hds->batch[type] >= hd_stat->stat_interval_pkts 
-      || cur_hds->time_ms[type] + 1000 < hd_stat->current_time_ms){
-         fieldstat_easy_counter_incrby(hd_stat->fse, thread_id, hd_stat->field_stat_id[type], NULL, 0, cur_hds->counter[type]);
-         cur_hds->counter[type] = 0;
-         cur_hds->batch[type] = 0;
-         cur_hds->time_ms[type] = hd_stat->current_time_ms;
+    if (cur_hds->batch[type] >= hd_stat->stat_interval_pkts || cur_hds->time_ms[type] + 1000 < hd_stat->current_time_ms)
+    {
+        fieldstat_easy_counter_incrby(hd_stat->fse, thread_id, hd_stat->field_stat_id[type], NULL, 0, cur_hds->counter[type]);
+        cur_hds->counter[type] = 0;
+        cur_hds->batch[type] = 0;
+        cur_hds->time_ms[type] = hd_stat->current_time_ms;
     }
 }
\ No newline at end of file
diff --git a/decoders/http/http_decoder_stat.h b/decoders/http/http_decoder_stat.h
index 719e6a0..339e81d 100644
--- a/decoders/http/http_decoder_stat.h
+++ b/decoders/http/http_decoder_stat.h
@@ -1,30 +1,29 @@
-#ifndef _HTTP_DECODER_STAT_H_
-#define _HTTP_DECODER_STAT_H_ 1
+#pragma once
 
 #include <fieldstat/fieldstat_easy.h>
 enum http_decoder_stat_type
 {
-    HTTPD_STAT_BYTES_C2S = 0,
-    HTTPD_STAT_BYTES_S2C,
-    HTTPD_STAT_TCP_SEG_C2S,
-    HTTPD_STAT_TCP_SEG_S2C,
-    HTTPD_STAT_HEADERS_C2S,
-    HTTPD_STAT_HEADERS_S2C,
-    HTTPD_STAT_ZIP_BYTES,   //only if Content-Encoding is gzip, deflate, br  
-    HTTPD_STAT_UNZIP_BYTES, //only if Content-Encoding is gzip, deflate, br  
-    HTTPD_STAT_URL_BYTES,
-    HTTPD_STAT_SESSION_NEW,
-    HTTPD_STAT_SESSION_FREE,
-    HTTPD_STAT_SESSION_EXCEPTION, // rst, kickout, lost packet, etc.
-    HTTPD_STAT_TUNNEL,
-    HTTPD_STAT_TRANSACTION_NEW,
-    HTTPD_STAT_TRANSACTION_FREE,
-    HTTPD_STAT_ASYMMETRY_SESSION_C2S,
-    HTTPD_STAT_ASYMMETRY_SESSION_S2C,
-    HTTPD_STAT_ASYMMETRY_TRANSACTION_C2S,
-    HTTPD_STAT_ASYMMETRY_TRANSACTION_S2C,
-    HTTPD_STAT_PARSE_ERR,
-    HTTPD_STAT_MAX,
+    HTTP_C2S_BYTES = 0,
+    HTTP_S2C_BYTES,
+    HTTP_C2S_TCP_SEG,
+    HTTP_S2C_TCP_SEG,
+    HTTP_C2S_HEADERS,
+    HTTP_S2C_HEADERS,
+    HTTP_C2S_ZIP_BYTES,   // only if Content-Encoding is gzip, deflate, br
+    HTTP_S2C_ZIP_BYTES,   // only if Content-Encoding is gzip, deflate, br
+    HTTP_C2S_UNZIP_BYTES, // only if Content-Encoding is gzip, deflate, br
+    HTTP_S2C_UNZIP_BYTES, // only if Content-Encoding is gzip, deflate, br
+    HTTP_URL_BYTES,
+    HTTP_SESSION_NEW,
+    HTTP_SESSION_FREE,
+    HTTP_TRANSACTION_NEW,
+    HTTP_TRANSACTION_FREE,
+    HTTP_C2S_ASYMMETRY_SESSION,
+    HTTP_S2C_ASYMMETRY_SESSION,
+    HTTP_C2S_ASYMMETRY_TRANSACTION,
+    HTTP_S2C_ASYMMETRY_TRANSACTION,
+    HTTP_STAT_PARSE_ERR,
+    HTTP_STAT_MAX,
 };
 
 struct hd_stat_config_tuple
@@ -35,10 +34,10 @@ struct hd_stat_config_tuple
 
 struct hd_statistics
 {
-    long long time_ms[HTTPD_STAT_MAX];
-    long long counter[HTTPD_STAT_MAX];
-    int batch[HTTPD_STAT_MAX]; //call fieldstat_easy_counter_incrby() per batch
-}__attribute__ ((aligned (64)));
+    long long time_ms[HTTP_STAT_MAX];
+    long long counter[HTTP_STAT_MAX];
+    int batch[HTTP_STAT_MAX]; // call fieldstat_easy_counter_incrby() per batch
+} __attribute__((aligned(64)));
 
 struct http_decoder_stat
 {
@@ -46,12 +45,11 @@ struct http_decoder_stat
     long long current_time_ms;
     struct fieldstat_easy *fse;
     int stat_interval_pkts; // call fieldstat_incrby every stat_interval_pkts
-    int stat_interval_time; //second
-    int field_stat_id[HTTPD_STAT_MAX];
-    struct hd_statistics *stats; //size is thread number    
+    int stat_interval_time; // second
+    int field_stat_id[HTTP_STAT_MAX];
+    struct hd_statistics *stats; // size is thread number
 };
 
 int http_decoder_stat_init(struct http_decoder_stat *hd_stat, int thread_max, int stat_interval_pkts, int stat_interval_time);
 void http_decoder_stat_free(struct http_decoder_stat *hd_stat);
 void http_decoder_stat_update(struct http_decoder_stat *hd_stat, int thread_id, enum http_decoder_stat_type type, long long value);
-#endif
\ No newline at end of file
diff --git a/decoders/http/http_decoder_string.cpp b/decoders/http/http_decoder_string.cpp
index d54d22b..88abd17 100644
--- a/decoders/http/http_decoder_string.cpp
+++ b/decoders/http/http_decoder_string.cpp
@@ -2,11 +2,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
 static const char *string_state_to_desc(enum string_state state)
 {
-    switch (state) {
+    switch (state)
+    {
     case STRING_STATE_INIT:
         return "init";
         break;
@@ -25,22 +26,23 @@ static const char *string_state_to_desc(enum string_state state)
     }
 }
 
-void http_decoder_string_refer(struct http_decoder_string *rstr,
-                               const char *at, size_t length)
+void http_decoder_string_refer(struct http_decoder_string *rstr, const char *at, size_t length)
 {
-    if (NULL == rstr) {
+    if (NULL == rstr)
+    {
         return;
     }
 
-    switch (rstr->state) {
-        case STRING_STATE_INIT:
-        case STRING_STATE_CACHE:
-            rstr->refer.iov_base = (char *)at;
-            rstr->refer.iov_len = length;
-            break;
-        default:
-            abort();
-            break;
+    switch (rstr->state)
+    {
+    case STRING_STATE_INIT:
+    case STRING_STATE_CACHE:
+        rstr->refer.iov_base = (char *)at;
+        rstr->refer.iov_len = length;
+        break;
+    default:
+        abort();
+        break;
     }
 
     rstr->state = STRING_STATE_REFER;
@@ -48,22 +50,28 @@ void http_decoder_string_refer(struct http_decoder_string *rstr,
 
 static void string_refer2cache(struct http_decoder_string *rstr)
 {
-    if (0 == rstr->refer.iov_len) {
+    if (0 == rstr->refer.iov_len)
+    {
         return;
     }
-    if (rstr->cache.iov_len >= rstr->max_cache_size) {
+    if (rstr->cache.iov_len >= rstr->max_cache_size)
+    {
         return;
     }
 
     size_t length = rstr->cache.iov_len + rstr->refer.iov_len;
-    if (length > rstr->max_cache_size) {
+    if (length > rstr->max_cache_size)
+    {
         length = rstr->max_cache_size;
     }
 
-    if (NULL == rstr->cache.iov_base) {
+    if (NULL == rstr->cache.iov_base)
+    {
         rstr->cache.iov_base = CALLOC(char, length + 1);
         memcpy(rstr->cache.iov_base, rstr->refer.iov_base, length);
-    } else {
+    }
+    else
+    {
         rstr->cache.iov_base = REALLOC(char, rstr->cache.iov_base, length + 1);
         memcpy((char *)rstr->cache.iov_base + rstr->cache.iov_len, rstr->refer.iov_base,
                (length - rstr->cache.iov_len));
@@ -77,24 +85,32 @@ static void string_refer2cache(struct http_decoder_string *rstr)
 static void string_commit2cache(struct http_decoder_string *rstr)
 {
     if (rstr->cache.iov_len == rstr->commit.iov_len &&
-        rstr->cache.iov_base == rstr->commit.iov_base) {
+        rstr->cache.iov_base == rstr->commit.iov_base)
+    {
         rstr->commit.iov_base = NULL;
         rstr->commit.iov_len = 0;
         return;
     }
 
-    //Only http header key need to backward to cache
+    // Only http header key need to backward to cache
     size_t length = 0;
-    if (rstr->commit.iov_len > rstr->max_cache_size) {
+    if (rstr->commit.iov_len > rstr->max_cache_size)
+    {
         length = rstr->max_cache_size;
-    } else {
+    }
+    else
+    {
         length = rstr->commit.iov_len;
     }
 
-    if (length > 0) {
-        if (NULL == rstr->cache.iov_base) {
+    if (length > 0)
+    {
+        if (NULL == rstr->cache.iov_base)
+        {
             rstr->cache.iov_base = CALLOC(char, length + 1);
-        } else {
+        }
+        else
+        {
             abort();
         }
         memcpy(rstr->cache.iov_base, rstr->commit.iov_base, length);
@@ -107,18 +123,20 @@ static void string_commit2cache(struct http_decoder_string *rstr)
 
 void http_decoder_string_cache(struct http_decoder_string *rstr)
 {
-    if (NULL == rstr) {
+    if (NULL == rstr)
+    {
         return;
     }
 
-    switch (rstr->state) {
+    switch (rstr->state)
+    {
     case STRING_STATE_REFER:
         string_refer2cache(rstr);
         break;
     case STRING_STATE_CACHE:
         break;
     case STRING_STATE_COMMIT:
-        //commit backward to cache
+        // commit backward to cache
         string_commit2cache(rstr);
         break;
     default:
@@ -130,34 +148,39 @@ void http_decoder_string_cache(struct http_decoder_string *rstr)
 
 void http_decoder_string_commit(struct http_decoder_string *rstr)
 {
-    if (NULL == rstr) {
+    if (NULL == rstr)
+    {
         return;
     }
 
-    switch (rstr->state) {
-        case STRING_STATE_REFER:
-            if (rstr->cache.iov_len) {
-                http_decoder_string_cache(rstr);
-
-                rstr->commit.iov_base = rstr->cache.iov_base;
-                rstr->commit.iov_len = rstr->cache.iov_len;
-                // not overwrite rstr->cache.iov_base
-            } else {
-                rstr->commit.iov_base = rstr->refer.iov_base;
-                rstr->commit.iov_len = rstr->refer.iov_len;
-
-                rstr->refer.iov_base = NULL;
-                rstr->refer.iov_len = 0;
-            }
-            break;
-        case STRING_STATE_CACHE:
+    switch (rstr->state)
+    {
+    case STRING_STATE_REFER:
+        if (rstr->cache.iov_len)
+        {
+            http_decoder_string_cache(rstr);
+
             rstr->commit.iov_base = rstr->cache.iov_base;
             rstr->commit.iov_len = rstr->cache.iov_len;
             // not overwrite rstr->cache.iov_base
-            break;
-        default:
-            //abort();
-            break;
+        }
+        else
+        {
+            rstr->commit.iov_base = rstr->refer.iov_base;
+            rstr->commit.iov_len = rstr->refer.iov_len;
+
+            rstr->refer.iov_base = NULL;
+            rstr->refer.iov_len = 0;
+        }
+        break;
+    case STRING_STATE_CACHE:
+        rstr->commit.iov_base = rstr->cache.iov_base;
+        rstr->commit.iov_len = rstr->cache.iov_len;
+        // not overwrite rstr->cache.iov_base
+        break;
+    default:
+        // abort();
+        break;
     }
 
     rstr->state = STRING_STATE_COMMIT;
@@ -167,7 +190,8 @@ void http_decoder_string_reset(struct http_decoder_string *rstr)
 {
     assert(rstr);
 
-    switch (rstr->state) {
+    switch (rstr->state)
+    {
     case STRING_STATE_INIT:
     case STRING_STATE_REFER:
     case STRING_STATE_CACHE:
@@ -183,26 +207,27 @@ void http_decoder_string_reset(struct http_decoder_string *rstr)
     rstr->state = STRING_STATE_INIT;
 }
 
-
-void http_decoder_string_init(struct http_decoder_string *rstr,
-                              size_t max_cache_size)
+void http_decoder_string_init(struct http_decoder_string *rstr, size_t max_cache_size)
 {
     rstr->max_cache_size = max_cache_size;
 }
 
 void http_decoder_string_reinit(struct http_decoder_string *rstr)
 {
-    if (rstr->state == STRING_STATE_CACHE) {
+    if (rstr->state == STRING_STATE_CACHE)
+    {
         return;
     }
 
     if (rstr->state == STRING_STATE_COMMIT &&
         rstr->cache.iov_base == rstr->commit.iov_base &&
-        rstr->cache.iov_len == rstr->commit.iov_len) {
+        rstr->cache.iov_len == rstr->commit.iov_len)
+    {
         return;
     }
 
-    if (rstr->cache.iov_base != NULL) {
+    if (rstr->cache.iov_base != NULL)
+    {
         FREE(rstr->cache.iov_base);
         rstr->cache.iov_len = 0;
     }
@@ -213,7 +238,7 @@ void http_decoder_string_reinit(struct http_decoder_string *rstr)
     rstr->commit.iov_base = NULL;
     rstr->commit.iov_len = 0;
     rstr->state = STRING_STATE_INIT;
-#endif    
+#endif
 }
 
 enum string_state http_decoder_string_state(const struct http_decoder_string *rstr)
@@ -223,14 +248,18 @@ enum string_state http_decoder_string_state(const struct http_decoder_string *rs
 
 int http_decoder_string_get(const struct http_decoder_string *rstr, hstring *out)
 {
-    if (NULL == rstr || NULL == out) {
+    if (NULL == rstr || NULL == out)
+    {
         return -1;
     }
 
-    if (http_decoder_string_state(rstr) == STRING_STATE_COMMIT) {
+    if (http_decoder_string_state(rstr) == STRING_STATE_COMMIT)
+    {
         out->iov_base = rstr->commit.iov_base;
         out->iov_len = rstr->commit.iov_len;
-    } else {
+    }
+    else
+    {
         out->iov_base = NULL;
         out->iov_len = 0;
     }
@@ -240,7 +269,8 @@ int http_decoder_string_get(const struct http_decoder_string *rstr, hstring *out
 
 void http_decoder_string_dump(struct http_decoder_string *rstr, const char *desc)
 {
-    if (NULL == rstr) {
+    if (NULL == rstr)
+    {
         return;
     }
 
diff --git a/decoders/http/http_decoder_string.h b/decoders/http/http_decoder_string.h
index 3b25732..006794c 100644
--- a/decoders/http/http_decoder_string.h
+++ b/decoders/http/http_decoder_string.h
@@ -1,5 +1,4 @@
-#ifndef _HTTP_DECODER_STRING_H_
-#define _HTTP_DECODER_STRING_H_
+#pragma once
 
 #include "stellar/http.h"
 
@@ -71,4 +70,4 @@ enum string_state http_decoder_string_state(const struct http_decoder_string *rs
 int http_decoder_string_get(const struct http_decoder_string *rstr, hstring *out);
 
 void http_decoder_string_dump(struct http_decoder_string *rstr, const char *desc);
-#endif
\ No newline at end of file
+ 
\ No newline at end of file
diff --git a/decoders/http/http_decoder_table.cpp b/decoders/http/http_decoder_table.cpp
index b58154f..bdf15d0 100644
--- a/decoders/http/http_decoder_table.cpp
+++ b/decoders/http/http_decoder_table.cpp
@@ -1,7 +1,7 @@
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
 #define INIT_HEADER_CNT 16
 #define MAX_URI_CACHE_SIZE 2048
@@ -11,12 +11,14 @@
 #define MAX_HEADER_KEY_CACHE_SIZE 4096
 #define MAX_HEADER_VALUE_CACHE_SIZE 4096
 
-struct http_decoder_header {
+struct http_decoder_header
+{
     struct http_decoder_string key;
     struct http_decoder_string val;
 };
 
-struct http_decoder_table {
+struct http_decoder_table
+{
     struct http_decoder_string uri;
     struct http_decoder_string status;
     struct http_decoder_string method;
@@ -26,15 +28,16 @@ struct http_decoder_table {
     nmx_pool_t *ref_mempool;
     int header_complete; // flag for all headers parsed completely
     size_t header_cnt;
-    size_t header_index; //current parsing header
-    size_t header_iter; //plugins iterate cursor
-    size_t commit_header_index; //pushed to plugins, whether has called http_message_header_next()
+    size_t header_index;        // current parsing header
+    size_t header_iter;         // plugins iterate cursor
+    size_t commit_header_index; // pushed to plugins, whether has called http_message_header_next()
     struct http_decoder_header *headers;
 };
 
 static void http_decoder_table_init(struct http_decoder_table *table)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
 
@@ -46,12 +49,13 @@ static void http_decoder_table_init(struct http_decoder_table *table)
     http_decoder_string_init(&table->method, MAX_METHOD_CACHE_SIZE);
     http_decoder_string_init(&table->version, MAX_METHOD_CACHE_SIZE);
 
-    for (size_t i = 0; i < table->header_cnt; i++) {
+    for (size_t i = 0; i < table->header_cnt; i++)
+    {
         header = &table->headers[i];
         http_decoder_string_init(&header->key, MAX_HEADER_KEY_CACHE_SIZE);
         http_decoder_string_init(&header->val, MAX_HEADER_VALUE_CACHE_SIZE);
     }
-        
+
     http_decoder_string_init(&table->body, 0);
 }
 
@@ -73,32 +77,42 @@ struct http_decoder_table *http_decoder_table_new(nmx_pool_t *mempool)
 
 void http_decoder_table_free(struct http_decoder_table *table)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
-    if (table->uri.cache.iov_base != NULL) {
+    if (table->uri.cache.iov_base != NULL)
+    {
         FREE(table->uri.cache.iov_base);
     }
-    if (table->status.cache.iov_base != NULL) {
+    if (table->status.cache.iov_base != NULL)
+    {
         FREE(table->status.cache.iov_base);
     }
-    if (table->method.cache.iov_base != NULL) {
+    if (table->method.cache.iov_base != NULL)
+    {
         FREE(table->method.cache.iov_base);
     }
-    if (table->version.cache.iov_base != NULL) {
+    if (table->version.cache.iov_base != NULL)
+    {
         FREE(table->version.cache.iov_base);
     }
-    if (table->body.cache.iov_base != NULL) {
+    if (table->body.cache.iov_base != NULL)
+    {
         FREE(table->body.cache.iov_base);
     }
 
-    if (table->headers != NULL) {
-        for (size_t i = 0; i < table->header_cnt; i++) {
-            if (table->headers[i].key.cache.iov_base != NULL) {
+    if (table->headers != NULL)
+    {
+        for (size_t i = 0; i < table->header_cnt; i++)
+        {
+            if (table->headers[i].key.cache.iov_base != NULL)
+            {
                 FREE(table->headers[i].key.cache.iov_base);
             }
 
-            if (table->headers[i].val.cache.iov_base != NULL) {
+            if (table->headers[i].val.cache.iov_base != NULL)
+            {
                 FREE(table->headers[i].val.cache.iov_base);
             }
         }
@@ -109,17 +123,18 @@ void http_decoder_table_free(struct http_decoder_table *table)
     MEMPOOL_FREE(table->ref_mempool, table);
 }
 
-enum string_state
-http_decoder_table_state(struct http_decoder_table *table, enum http_item type)
+enum string_state http_decoder_table_state(struct http_decoder_table *table, enum http_item type)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return STRING_STATE_INIT;
     }
     struct http_decoder_header *header = NULL;
     enum string_state state = STRING_STATE_INIT;
     assert(table);
 
-    switch (type) {
+    switch (type)
+    {
     case HTTP_ITEM_URI:
         state = http_decoder_string_state(&table->uri);
         break;
@@ -153,17 +168,18 @@ http_decoder_table_state(struct http_decoder_table *table, enum http_item type)
     return state;
 }
 
-void http_decoder_table_refer(struct http_decoder_table *table, enum http_item type,
-                              const char *at, size_t len)
+void http_decoder_table_refer(struct http_decoder_table *table, enum http_item type, const char *at, size_t len)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
 
     struct http_decoder_header *header = NULL;
     assert(table);
 
-    switch (type) {
+    switch (type)
+    {
     case HTTP_ITEM_URI:
         http_decoder_string_refer(&table->uri, at, len);
         break;
@@ -197,14 +213,16 @@ void http_decoder_table_refer(struct http_decoder_table *table, enum http_item t
 
 void http_decoder_table_cache(struct http_decoder_table *table, enum http_item type)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
 
     struct http_decoder_header *header = NULL;
     assert(table);
 
-    switch (type) {
+    switch (type)
+    {
     case HTTP_ITEM_URI:
         http_decoder_string_cache(&table->uri);
         break;
@@ -238,7 +256,8 @@ void http_decoder_table_cache(struct http_decoder_table *table, enum http_item t
 
 void http_decoder_table_commit(struct http_decoder_table *table, enum http_item type)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
 
@@ -246,7 +265,8 @@ void http_decoder_table_commit(struct http_decoder_table *table, enum http_item
     struct http_decoder_header *header = NULL;
     assert(table);
 
-    switch (type) {
+    switch (type)
+    {
     case HTTP_ITEM_URI:
         http_decoder_string_commit(&table->uri);
         break;
@@ -268,20 +288,23 @@ void http_decoder_table_commit(struct http_decoder_table *table, enum http_item
         header = &table->headers[table->header_index];
         http_decoder_string_commit(&header->val);
         // inc index
-        if ((table->header_index + 1) >= table->header_cnt) {
+        if ((table->header_index + 1) >= table->header_cnt)
+        {
             struct http_decoder_header *old_headers = table->headers;
             table->headers =
                 MEMPOOL_CALLOC(table->ref_mempool, struct http_decoder_header,
                                table->header_cnt * 2);
             table->header_cnt *= 2;
 
-            for (i = 0; i <= table->header_index; i++) {
+            for (i = 0; i <= table->header_index; i++)
+            {
                 table->headers[i] = old_headers[i];
             }
 
             MEMPOOL_FREE(table->ref_mempool, old_headers);
 
-            for (i = table->header_index + 1; i < table->header_cnt; i++) {
+            for (i = table->header_index + 1; i < table->header_cnt; i++)
+            {
                 header = &table->headers[i];
                 memset(header, 0, sizeof(struct http_decoder_header));
                 http_decoder_string_init(&header->key, MAX_HEADER_KEY_CACHE_SIZE);
@@ -301,14 +324,16 @@ void http_decoder_table_commit(struct http_decoder_table *table, enum http_item
 
 void http_decoder_table_reset(struct http_decoder_table *table, enum http_item type)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
 
     struct http_decoder_header *header = NULL;
     assert(table);
 
-    switch (type) {
+    switch (type)
+    {
     case HTTP_ITEM_URI:
         http_decoder_string_reset(&table->uri);
         break;
@@ -342,14 +367,15 @@ void http_decoder_table_reinit(struct http_decoder_table *table)
 {
     assert(table);
     struct http_decoder_header *header = NULL;
-    
+
     http_decoder_string_reinit(&table->uri);
     http_decoder_string_reinit(&table->status);
     http_decoder_string_reinit(&table->method);
     http_decoder_string_reinit(&table->version);
     // for (size_t i = 0; i < table->header_iter; i++) {
-    for (size_t i = 0; i < table->commit_header_index; i++) {
-        //todo, reset header_index, avoid realloc headers as much as possible
+    for (size_t i = 0; i < table->commit_header_index; i++)
+    {
+        // todo, reset header_index, avoid realloc headers as much as possible
         header = &table->headers[i];
         http_decoder_string_reinit(&header->key);
         http_decoder_string_reinit(&header->val);
@@ -360,7 +386,8 @@ void http_decoder_table_reinit(struct http_decoder_table *table)
 
 void http_decoder_table_dump(struct http_decoder_table *table)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
 
@@ -370,9 +397,11 @@ void http_decoder_table_dump(struct http_decoder_table *table)
     http_decoder_string_dump(&table->version, "version");
     http_decoder_string_dump(&table->body, "body");
 
-    for (size_t i = 0; i < table->header_cnt; i++) {
+    for (size_t i = 0; i < table->header_cnt; i++)
+    {
         struct http_decoder_header *header = &table->headers[i];
-        if (NULL == header) {
+        if (NULL == header)
+        {
             continue;
         }
 
@@ -383,7 +412,8 @@ void http_decoder_table_dump(struct http_decoder_table *table)
 
 int http_decoder_table_get_uri(const struct http_decoder_table *table, hstring *out)
 {
-    if (NULL == table || NULL == out) {
+    if (NULL == table || NULL == out)
+    {
         return -1;
     }
     return http_decoder_string_get(&table->uri, out);
@@ -391,7 +421,8 @@ int http_decoder_table_get_uri(const struct http_decoder_table *table, hstring *
 
 int http_decoder_table_get_method(const struct http_decoder_table *table, hstring *out)
 {
-    if (NULL == table || NULL == out) {
+    if (NULL == table || NULL == out)
+    {
         return -1;
     }
     return http_decoder_string_get(&table->method, out);
@@ -399,7 +430,8 @@ int http_decoder_table_get_method(const struct http_decoder_table *table, hstrin
 
 int http_decoder_table_get_status(const struct http_decoder_table *table, hstring *out)
 {
-    if (NULL == table || NULL == out) {
+    if (NULL == table || NULL == out)
+    {
         return -1;
     }
     return http_decoder_string_get(&table->status, out);
@@ -407,7 +439,8 @@ int http_decoder_table_get_status(const struct http_decoder_table *table, hstrin
 
 int http_decoder_table_get_version(const struct http_decoder_table *table, hstring *out)
 {
-    if (NULL == table || NULL == out) {
+    if (NULL == table || NULL == out)
+    {
         return -1;
     }
     return http_decoder_string_get(&table->version, out);
@@ -415,7 +448,8 @@ int http_decoder_table_get_version(const struct http_decoder_table *table, hstri
 
 int http_decoder_table_get_body(const struct http_decoder_table *table, hstring *out)
 {
-    if (NULL == table || NULL == out) {
+    if (NULL == table || NULL == out)
+    {
         return -1;
     }
     return http_decoder_string_get(&table->body, out);
@@ -424,19 +458,23 @@ int http_decoder_table_get_body(const struct http_decoder_table *table, hstring
 int http_decoder_table_get_header(const struct http_decoder_table *table, const hstring *key,
                                   struct http_header *hdr_result)
 {
-    for (size_t i = 0; i < table->header_cnt; i++) {
+    for (size_t i = 0; i < table->header_cnt; i++)
+    {
         const struct http_decoder_header *tmp_header = &table->headers[i];
-        if (tmp_header->key.commit.iov_len != key->iov_len) {
+        if (tmp_header->key.commit.iov_len != key->iov_len)
+        {
             continue;
         }
 
         if (http_decoder_string_state(&tmp_header->key) == STRING_STATE_COMMIT &&
-            http_decoder_string_state(&tmp_header->val) == STRING_STATE_COMMIT) {
+            http_decoder_string_state(&tmp_header->val) == STRING_STATE_COMMIT)
+        {
             hstring tmp_key;
             http_decoder_string_get(&tmp_header->key, &tmp_key);
 
             if (tmp_key.iov_len == key->iov_len &&
-                (0 == strncasecmp((char *)tmp_key.iov_base, (char *)key->iov_base, key->iov_len))) {
+                (0 == strncasecmp((char *)tmp_key.iov_base, (char *)key->iov_base, key->iov_len)))
+            {
                 http_decoder_string_get(&tmp_header->key, &hdr_result->key);
                 http_decoder_string_get(&tmp_header->val, &hdr_result->val);
                 return 0;
@@ -446,20 +484,23 @@ int http_decoder_table_get_header(const struct http_decoder_table *table, const
     return -1;
 }
 
-int http_decoder_table_iter_header(struct http_decoder_table *table,
-                                   struct http_header *hdr)
+int http_decoder_table_iter_header(struct http_decoder_table *table, struct http_header *hdr)
 {
-    if (NULL == table || NULL == hdr) {
+    if (NULL == table || NULL == hdr)
+    {
         return -1;
     }
-    if (table->header_iter >= table->header_cnt) {
+    if (table->header_iter >= table->header_cnt)
+    {
         return -1;
     }
 
     struct http_decoder_header *tmp_header = &table->headers[table->header_iter];
-    if (tmp_header != NULL) {
+    if (tmp_header != NULL)
+    {
         if (http_decoder_string_state(&tmp_header->key) == STRING_STATE_COMMIT &&
-            http_decoder_string_state(&tmp_header->val) == STRING_STATE_COMMIT) {
+            http_decoder_string_state(&tmp_header->val) == STRING_STATE_COMMIT)
+        {
 
             http_decoder_string_get(&tmp_header->key, &hdr->key);
             http_decoder_string_get(&tmp_header->val, &hdr->val);
@@ -485,14 +526,15 @@ int http_decoder_table_reset_header_iter(struct http_decoder_table *table)
 int http_decoder_table_has_parsed_header(struct http_decoder_table *table)
 {
     // if (NULL == table || (table->header_iter == table->header_index)) {
-    if (NULL == table || (table->commit_header_index == table->header_index)) {
+    if (NULL == table || (table->commit_header_index == table->header_index))
+    {
         return 0;
     }
 
     const struct http_decoder_header *tmp_header = &table->headers[table->header_iter];
 
-    if (http_decoder_string_state(&tmp_header->key) == STRING_STATE_COMMIT 
-         && http_decoder_string_state(&tmp_header->val) == STRING_STATE_COMMIT) {
+    if (http_decoder_string_state(&tmp_header->key) == STRING_STATE_COMMIT && http_decoder_string_state(&tmp_header->val) == STRING_STATE_COMMIT)
+    {
         return 1;
     }
 
@@ -501,7 +543,8 @@ int http_decoder_table_has_parsed_header(struct http_decoder_table *table)
 
 int http_decoder_table_header_complete(struct http_decoder_table *table)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return -1;
     }
     return table->header_complete;
@@ -509,7 +552,8 @@ int http_decoder_table_header_complete(struct http_decoder_table *table)
 
 void http_decoder_table_set_header_complete(struct http_decoder_table *table)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
     table->header_complete = 1;
@@ -517,7 +561,8 @@ void http_decoder_table_set_header_complete(struct http_decoder_table *table)
 
 void http_decoder_table_reset_header_complete(struct http_decoder_table *table)
 {
-    if (NULL == table) {
+    if (NULL == table)
+    {
         return;
     }
     table->header_complete = 0;
diff --git a/decoders/http/http_decoder_table.h b/decoders/http/http_decoder_table.h
index bbc6956..d32f6be 100644
--- a/decoders/http/http_decoder_table.h
+++ b/decoders/http/http_decoder_table.h
@@ -1,11 +1,11 @@
-#ifndef _HTTP_DECODER_TABLE_H_
-#define _HTTP_DECODER_TABLE_H_
+#pragma once
 #include <stddef.h>
 #include "stellar/http.h"
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 #include "http_decoder_string.h"
 
-enum http_item {
+enum http_item
+{
     HTTP_ITEM_URI = 0x01,
     HTTP_ITEM_STATUS = 0x02,
     HTTP_ITEM_METHOD = 0x03,
@@ -55,9 +55,9 @@ int http_decoder_table_iter_header(struct http_decoder_table *table,
 int http_decoder_table_reset_header_iter(struct http_decoder_table *table);
 /**
  * @brief Is there a parsed header
- * 
+ *
  * @retval yes(1) no(0)
-*/
+ */
 int http_decoder_table_has_parsed_header(struct http_decoder_table *table);
 
 /**
@@ -69,7 +69,7 @@ int http_decoder_table_header_complete(struct http_decoder_table *table);
 
 /**
  * @brief set flag for headers parsed completely
-*/
+ */
 void http_decoder_table_set_header_complete(struct http_decoder_table *table);
 
 void http_decoder_table_reset_header_complete(struct http_decoder_table *table);
@@ -77,4 +77,3 @@ void http_decoder_table_reset_header_complete(struct http_decoder_table *table);
 void http_decoder_table_update_commit_index(struct http_decoder_table *table);
 
 int http_decoder_table_get_total_parsed_header(struct http_decoder_table *table);
-#endif
\ No newline at end of file
diff --git a/decoders/http/http_decoder_tunnel.cpp b/decoders/http/http_decoder_tunnel.cpp
index 42f100a..cf5a573 100644
--- a/decoders/http/http_decoder_tunnel.cpp
+++ b/decoders/http/http_decoder_tunnel.cpp
@@ -3,7 +3,7 @@
 #include <string.h>
 #include <strings.h>
 #include <unistd.h>
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 #include "llhttp.h"
 
 struct http_tunnel_message
@@ -12,28 +12,32 @@ struct http_tunnel_message
     hstring tunnel_payload;
 };
 
-
 int httpd_tunnel_identify(struct http_decoder_env *httpd_env, int curdir, struct http_decoder_half_data *hfdata)
 {
-    if(0 == httpd_env->hd_cfg.proxy_enable){
+    if (0 == httpd_env->hd_cfg.proxy_enable)
+    {
         return 0;
     }
 
-    if(FLOW_DIRECTION_C2S  == curdir){
+    if (FLOW_DIRECTION_C2S == curdir)
+    {
         struct http_request_line reqline = {};
         http_decoder_half_data_get_request_line(hfdata, &reqline);
-        if(0 == strncasecmp_safe("CONNECT", (char *)reqline.method.iov_base, 
-                            7, reqline.method.iov_len)){
+        if (0 == strncasecmp_safe("CONNECT", (char *)reqline.method.iov_base,
+                                  7, reqline.method.iov_len))
+        {
             return 1;
         }
-    }else{
+    }
+    else
+    {
         struct http_response_line resline = {};
         http_decoder_half_data_get_response_line(hfdata, &resline);
-        if(resline.status_code == HTTP_STATUS_OK
-          && 0 == strncasecmp_safe("Connection established", (char *)resline.status.iov_base, 
-                            strlen("Connection established"), resline.status.iov_len)){
+        if (resline.status_code == HTTP_STATUS_OK && 0 == strncasecmp_safe("Connection established", (char *)resline.status.iov_base,
+                                                                           strlen("Connection established"), resline.status.iov_len))
+        {
             return 1;
-        }        
+        }
     }
 
     return 0;
@@ -41,15 +45,17 @@ int httpd_tunnel_identify(struct http_decoder_env *httpd_env, int curdir, struct
 
 int httpd_is_tunnel_session(const struct http_decoder_env *httpd_env, const struct http_decoder_exdata *ex_data)
 {
-    if(0 == httpd_env->hd_cfg.proxy_enable){
+    if (0 == httpd_env->hd_cfg.proxy_enable)
+    {
         return 0;
-    }    
+    }
     return (ex_data && ex_data->tunnel_state != HTTP_TUN_NON);
 }
 
 int httpd_in_tunnel_transmitting(const struct http_decoder_env *httpd_env, struct http_decoder_exdata *ex_data)
 {
-    if(0 == httpd_env->hd_cfg.proxy_enable){
+    if (0 == httpd_env->hd_cfg.proxy_enable)
+    {
         return 0;
     }
     return (ex_data && ex_data->tunnel_state >= HTTP_TUN_INNER_STARTING);
@@ -57,10 +63,12 @@ int httpd_in_tunnel_transmitting(const struct http_decoder_env *httpd_env, struc
 
 enum http_tunnel_message_type httpd_tunnel_state_to_msg(const struct http_decoder_exdata *ex_data)
 {
-    if(ex_data->tunnel_state == HTTP_TUN_INNER_STARTING){
+    if (ex_data->tunnel_state == HTTP_TUN_INNER_STARTING)
+    {
         return HTTP_TUNNEL_OPENING;
     }
-    if(ex_data->tunnel_state == HTTP_TUN_INNER_TRANS){
+    if (ex_data->tunnel_state == HTTP_TUN_INNER_TRANS)
+    {
         return HTTP_TUNNEL_ACTIVE;
     }
     return HTTP_TUNNEL_MSG_MAX;
@@ -68,7 +76,8 @@ enum http_tunnel_message_type httpd_tunnel_state_to_msg(const struct http_decode
 
 void httpd_tunnel_state_update(struct http_decoder_exdata *ex_data)
 {
-    if(ex_data->tunnel_state == HTTP_TUN_INNER_STARTING){
+    if (ex_data->tunnel_state == HTTP_TUN_INNER_STARTING)
+    {
         ex_data->tunnel_state = HTTP_TUN_INNER_TRANS;
     }
 }
@@ -86,21 +95,21 @@ void http_decoder_push_tunnel_data(struct session *sess, const struct http_decod
 extern "C"
 {
 #endif
-void http_tunnel_message_get_payload(const struct http_tunnel_message *tmsg,
-                                     hstring *tunnel_payload)
-{
-    if (unlikely(NULL == tmsg || tunnel_payload == NULL))
+    void http_tunnel_message_get_payload(const struct http_tunnel_message *tmsg,
+                                         hstring *tunnel_payload)
     {
-        return;
+        if (unlikely(NULL == tmsg || tunnel_payload == NULL))
+        {
+            return;
+        }
+        tunnel_payload->iov_base = tmsg->tunnel_payload.iov_base;
+        tunnel_payload->iov_len = tmsg->tunnel_payload.iov_len;
     }
-    tunnel_payload->iov_base = tmsg->tunnel_payload.iov_base;
-    tunnel_payload->iov_len = tmsg->tunnel_payload.iov_len;
-}                                     
 
-enum http_tunnel_message_type http_tunnel_message_type_get(const struct http_tunnel_message *tmsg)
-{
-    return tmsg->type;
-}
+    enum http_tunnel_message_type http_tunnel_message_type_get(const struct http_tunnel_message *tmsg)
+    {
+        return tmsg->type;
+    }
 
 #ifdef __cplusplus
 }
diff --git a/decoders/http/http_decoder_tunnel.h b/decoders/http/http_decoder_tunnel.h
index b90e402..52882e5 100644
--- a/decoders/http/http_decoder_tunnel.h
+++ b/decoders/http/http_decoder_tunnel.h
@@ -1,23 +1,25 @@
-#pragma once 
-#include "http_decoder_inc.h"
+#pragma once
+#include "http_decoder_private.h"
 #include "http_decoder_half.h"
 
-enum http_tunnel_state{
-    HTTP_TUN_NON = 0,       // init, or not tunnel session
-    HTTP_TUN_C2S_HDR_START, //CONNECT ...
-    HTTP_TUN_C2S_END,       //CONNECT request end
-    HTTP_TUN_S2C_START,     // HTTP 200 connet established
-    HTTP_TUN_INNER_STARTING,   // http inner tunnel protocol starting
-    HTTP_TUN_INNER_TRANS,   // http inner tunnel protocol transmitting 
+enum http_tunnel_state
+{
+    HTTP_TUN_NON = 0,        // init, or not tunnel session
+    HTTP_TUN_C2S_HDR_START,  // CONNECT ...
+    HTTP_TUN_C2S_END,        // CONNECT request end
+    HTTP_TUN_S2C_START,      // HTTP 200 connet established
+    HTTP_TUN_INNER_STARTING, // http inner tunnel protocol starting
+    HTTP_TUN_INNER_TRANS,    // http inner tunnel protocol transmitting
 };
 
 /************************************************************
-*       HTTP TUNNEL WITH CONNECT METHOD.
-*************************************************************/
+ *       HTTP TUNNEL WITH CONNECT METHOD.
+ *************************************************************/
 struct http_tunnel_message;
-#define HTTP_DECODER_TUNNEL_TOPIC   "HTTP_DECODER_TUNNEL_MESSAGE"
+#define HTTP_DECODER_TUNNEL_TOPIC "HTTP_DECODER_TUNNEL_MESSAGE"
 
-enum http_tunnel_message_type {
+enum http_tunnel_message_type
+{
     HTTP_TUNNEL_OPENING,
     HTTP_TUNNEL_ACTIVE,
     HTTP_TUNNEL_CLOSING,
@@ -26,7 +28,6 @@ enum http_tunnel_message_type {
 enum http_tunnel_message_type http_tunnel_message_type_get(const struct http_tunnel_message *tmsg);
 void http_tunnel_message_get_payload(const struct http_tunnel_message *tmsg, struct iovec *tunnel_payload);
 
-
 int httpd_tunnel_identify(struct http_decoder_env *httpd_env, int curdir, struct http_decoder_half_data *hfdata);
 int httpd_is_tunnel_session(const struct http_decoder_env *httpd_env, const struct http_decoder_exdata *ex_data);
 int httpd_in_tunnel_transmitting(const struct http_decoder_env *httpd_env, struct http_decoder_exdata *ex_data);
diff --git a/decoders/http/http_decoder_utils.cpp b/decoders/http/http_decoder_utils.cpp
index 93fef81..181d592 100644
--- a/decoders/http/http_decoder_utils.cpp
+++ b/decoders/http/http_decoder_utils.cpp
@@ -1,7 +1,7 @@
 #include <string.h>
 #include <assert.h>
 #include "stellar/http.h"
-#include "http_decoder_inc.h"
+#include "http_decoder_private.h"
 
 char *safe_dup(const char *str, size_t len)
 {
@@ -164,7 +164,8 @@ int http_event_is_req(enum http_event event)
     return -1;
 }
 
-int stellar_session_mq_get_topic_id_reliable(struct stellar *st, const char *topic_name, stellar_msg_free_cb_func *msg_free_cb, void *msg_free_arg)
+int stellar_session_mq_get_topic_id_reliable(struct stellar *st, const char *topic_name,
+                                             stellar_msg_free_cb_func *msg_free_cb, void *msg_free_arg)
 {
     int topic_id = stellar_mq_get_topic_id(st, topic_name);
     if (topic_id < 0)
diff --git a/decoders/http/http_decoder_utils.h b/decoders/http/http_decoder_utils.h
index 33483cf..54dcd04 100644
--- a/decoders/http/http_decoder_utils.h
+++ b/decoders/http/http_decoder_utils.h
@@ -1,4 +1,4 @@
-#pragma once 
+#pragma once
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -29,7 +29,8 @@ int httpd_url_is_encoded(const char *url, size_t len);
  * Logger
  ******************************************************************************/
 
-enum http_decoder_log_level {
+enum http_decoder_log_level
+{
     DEBUG = 0x11,
     WARN = 0x12,
     INFO = 0x13,
@@ -61,20 +62,19 @@ enum http_decoder_log_level {
     }
 #endif
 
-
 #include <netinet/in.h>
 
 struct httpd_session_addr
 {
-    uint8_t ipver; /* 4 or 6 */
-	uint16_t sport;	/* network order */
-	uint16_t dport;	/* network order */    
-	union
-	{
+    uint8_t ipver;  /* 4 or 6 */
+    uint16_t sport; /* network order */
+    uint16_t dport; /* network order */
+    union
+    {
         uint32_t saddr4;
         uint32_t daddr4;
-		struct in6_addr saddr6;
+        struct in6_addr saddr6;
         struct in6_addr daddr6;
-	};
+    };
 };
 void httpd_session_get_addr(const struct session *sess, struct httpd_session_addr *addr);