From dd29390ef0fdfc0ad1c13f0246b3184323eedb93 Mon Sep 17 00:00:00 2001
From: zhaomingwork <61895407+zhaomingwork@users.noreply.github.com>
Date: 星期五, 11 八月 2023 09:27:49 +0800
Subject: [PATCH] For cpp ws srv long file core dump (#833)

---
 funasr/runtime/websocket/websocket-server-2pass.cpp |   90 +++++++++++++++++++++++++++++++++++++-------
 1 files changed, 75 insertions(+), 15 deletions(-)

diff --git a/funasr/runtime/websocket/websocket-server-2pass.cpp b/funasr/runtime/websocket/websocket-server-2pass.cpp
index 82beb1c..72a821c 100644
--- a/funasr/runtime/websocket/websocket-server-2pass.cpp
+++ b/funasr/runtime/websocket/websocket-server-2pass.cpp
@@ -15,7 +15,7 @@
 #include <thread>
 #include <utility>
 #include <vector>
-
+#include <chrono>
 context_ptr WebSocketServer::on_tls_init(tls_mode mode,
                                          websocketpp::connection_hdl hdl,
                                          std::string& s_certfile,
@@ -83,8 +83,10 @@
   scoped_lock guard(thread_lock);
   if(!tpass_online_handle){
 	  LOG(INFO) << "tpass_online_handle  is free, return";
+	  msg["access_num"]=(int)msg["access_num"]-1;
 	  return;
   }
+  try {
   FUNASR_RESULT Result = nullptr;
   int asr_mode_ = 2;
   if (msg.contains("mode")) {
@@ -102,10 +104,10 @@
     asr_mode_ = 2;
   }
 
-  try {
+
     // loop to send chunk_size 800*2 data to asr engine.   TODO: chunk_size need
     // get from client
-    while (buffer.size() >= 800 * 2) {
+    while (buffer.size() >= 800 * 2 && !msg["is_eof"]) {
       std::vector<char> subvector = {buffer.begin(), buffer.begin() + 800 * 2};
       buffer.erase(buffer.begin(), buffer.begin() + 800 * 2);
 
@@ -117,10 +119,13 @@
                                        msg["wav_format"], (ASR_TYPE)asr_mode_);
 
         } else {
+		  msg["access_num"]=(int)msg["access_num"]-1;
           return;
         }
       } catch (std::exception const& e) {
         LOG(ERROR) << e.what();
+		msg["access_num"]=(int)msg["access_num"]-1;
+		return;
       }
       if (Result) {
         websocketpp::lib::error_code ec;
@@ -147,10 +152,14 @@
                                        is_final, msg["audio_fs"],
                                        msg["wav_format"], (ASR_TYPE)asr_mode_);
         } else {
+		  msg["access_num"]=(int)msg["access_num"]-1;
+	 
           return;
         }
       } catch (std::exception const& e) {
         LOG(ERROR) << e.what();
+		msg["access_num"]=(int)msg["access_num"]-1;
+		return;
       }
       if(punc_cache.size()>0){
         for (auto& vec : punc_cache) {
@@ -175,16 +184,17 @@
 
   } catch (std::exception const& e) {
     std::cerr << "Error: " << e.what() << std::endl;
+
   }
+  msg["access_num"]=(int)msg["access_num"]-1;
+ 
 }
 
 void WebSocketServer::on_open(websocketpp::connection_hdl hdl) {
   scoped_lock guard(m_lock);     // for threads safty
   try{
-    check_and_clean_connection();  // remove closed connection 
-  }catch (std::exception const& e) {
-    std::cerr << "Error: " << e.what() << std::endl;
-  }
+ 
+
 
   std::shared_ptr<FUNASR_MESSAGE> data_msg =
       std::make_shared<FUNASR_MESSAGE>();  // put a new data vector for new
@@ -195,6 +205,8 @@
   data_msg->msg = nlohmann::json::parse("{}");
   data_msg->msg["wav_format"] = "pcm";
   data_msg->msg["audio_fs"] = 16000;
+  data_msg->msg["access_num"] = 0; // the number of access for this object, when it is 0, we can free it saftly
+  data_msg->msg["is_eof"]=false; // if this connection is closed
   data_msg->punc_cache =
       std::make_shared<std::vector<std::vector<std::string>>>(2);
   // std::vector<int> chunk_size = {5, 10, 5};  //TODO, need get from client
@@ -203,6 +215,9 @@
   // data_msg->tpass_online_handle = tpass_online_handle;
   data_map.emplace(hdl, data_msg);
   LOG(INFO) << "on_open, active connections: " << data_map.size();
+    }catch (std::exception const& e) {
+    std::cerr << "Error: " << e.what() << std::endl;
+  }
 }
 
 void remove_hdl(
@@ -220,30 +235,45 @@
   // scoped_lock guard_decoder(*(data_msg->thread_lock));  //wait for do_decoder
   // finished and avoid access freed tpass_online_handle
   unique_lock guard_decoder(*(data_msg->thread_lock));
-  if (data_msg->tpass_online_handle) {
+  if (data_msg->msg["access_num"]==0 && data_msg->msg["is_eof"]==true) {
     LOG(INFO) << "----------------FunTpassOnlineUninit----------------------";
     FunTpassOnlineUninit(data_msg->tpass_online_handle);
     data_msg->tpass_online_handle = nullptr;
+	data_map.erase(hdl);
   }
   
  
   guard_decoder.unlock();
-  data_map.erase(hdl);  // remove data vector when  connection is closed
+    // remove data vector when  connection is closed
 }
 
 void WebSocketServer::on_close(websocketpp::connection_hdl hdl) {
   scoped_lock guard(m_lock);
-  remove_hdl(hdl, data_map);
-  LOG(INFO) << "on_close, active connections: " << data_map.size();
+  std::shared_ptr<FUNASR_MESSAGE> data_msg = nullptr;
+  auto it_data = data_map.find(hdl);
+  if (it_data != data_map.end()) {
+    data_msg = it_data->second;
+  } else {
+    return;
+  }
+  unique_lock guard_decoder(*(data_msg->thread_lock));
+  data_msg->msg["is_eof"]=true;
+  guard_decoder.unlock();
+  //LOG(INFO) << "on_close, active connections: " << data_map.size();
 }
-
+ 
 // remove closed connection
 void WebSocketServer::check_and_clean_connection() {
+   LOG(INFO)<<"***********begin check_and_clean_connection ****************";
+ while(true){
+
+  std::this_thread::sleep_for(std::chrono::milliseconds(5000));
+  LOG(INFO) << "run check_and_clean_connection" <<", active connections: " << data_map.size();;
   std::vector<websocketpp::connection_hdl> to_remove;  // remove list
   auto iter = data_map.begin();
   while (iter != data_map.end()) {  // loop to find closed connection
     websocketpp::connection_hdl hdl = iter->first;
-
+    try{
     if (is_ssl) {
       wss_server::connection_ptr con = wss_server_->get_con_from_hdl(hdl);
       if (con->get_state() != 1) {  // session::state::open ==1
@@ -255,13 +285,34 @@
         to_remove.push_back(hdl);
       }
     }
-
+    }
+    catch (std::exception const &e)
+   
+    {
+		 // if connection is close, we set is_eof = true
+		  std::shared_ptr<FUNASR_MESSAGE> data_msg = nullptr;
+		  auto it_data = data_map.find(hdl);
+		  if (it_data != data_map.end()) {
+ 		     data_msg = it_data->second;
+ 		   } else {
+  		    continue;
+  		  }
+		    unique_lock guard_decoder(*(data_msg->thread_lock));
+            data_msg->msg["is_eof"]=true;
+            guard_decoder.unlock();
+	        //remove_hdl(hdl, data_map);
+			to_remove.push_back(hdl);
+            LOG(INFO)<<"connection is closed: "<<e.what();
+			
+    }
     iter++;
   }
   for (auto hdl : to_remove) {
     remove_hdl(hdl, data_map);
     LOG(INFO) << "remove one connection ";
   }
+
+ }
 }
 void WebSocketServer::on_message(websocketpp::connection_hdl hdl,
                                  message_ptr msg) {
@@ -291,7 +342,7 @@
   }
 
   const std::string& payload = msg->get_payload();  // get msg type
-
+  unique_lock guard_decoder(*(thread_lock_p)); // mutex for one connection
   switch (msg->get_opcode()) {
     case websocketpp::frame::opcode::text: {
       nlohmann::json jsonresult = nlohmann::json::parse(payload);
@@ -327,6 +378,7 @@
 
         // if it is in final message, post the sample_data to decode
         try{
+		  
           asio::post(
               io_decoder_,
               std::bind(&WebSocketServer::do_decoder, this,
@@ -335,10 +387,12 @@
                         std::ref(*thread_lock_p), std::move(true),
                         msg_data->msg["wav_name"],
                         std::ref(msg_data->tpass_online_handle)));
+		  msg_data->msg["access_num"]=(int)(msg_data->msg["access_num"])+1;
         }
         catch (std::exception const &e)
         {
             LOG(ERROR)<<e.what();
+			
         }
       }
       break;
@@ -374,6 +428,7 @@
                                 std::ref(*thread_lock_p), std::move(false),
                                 msg_data->msg["wav_name"],
                                 std::ref(msg_data->tpass_online_handle)));
+            msg_data->msg["access_num"]=(int)(msg_data->msg["access_num"])+1;
           }
           catch (std::exception const &e)
           {
@@ -389,6 +444,7 @@
     default:
       break;
   }
+  guard_decoder.unlock();
 }
 
 // init asr model
@@ -400,6 +456,10 @@
       LOG(ERROR) << "FunTpassInit init failed";
       exit(-1);
     }
+	LOG(INFO) << "initAsr run check_and_clean_connection";
+	std::thread clean_thread(&WebSocketServer::check_and_clean_connection,this);  
+	clean_thread.detach();
+	LOG(INFO) << "initAsr run check_and_clean_connection finished";
 
   } catch (const std::exception& e) {
     LOG(INFO) << e.what();

--
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