From aa2f3b2a9968bb4928463bdae05fb026d16b60bb Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期五, 04 十二月 2020 19:07:01 +0800
Subject: [PATCH] 固定bus key

---
 src/socket/net_mod_socket.c |  569 +++++++++++++++++++++++++++++++-------------------------
 1 files changed, 310 insertions(+), 259 deletions(-)

diff --git a/src/socket/net_mod_socket.c b/src/socket/net_mod_socket.c
index bc40442..07438fc 100644
--- a/src/socket/net_mod_socket.c
+++ b/src/socket/net_mod_socket.c
@@ -1,26 +1,27 @@
 #include "net_mod_socket.h"
 #include "socket_io.h"
 #include "net_mod_socket_io.h"
+#include "net_conn_pool.h"
 #include <sys/types.h>          /* See NOTES */
 #include <sys/socket.h>
+#include <pthread.h>
 
+static Logger *logger = LoggerFactory::getLogger();
+
+static pthread_once_t once = PTHREAD_ONCE_INIT;
+static pthread_key_t poolKey;
 
 
 
 NetModSocket::NetModSocket() 
 {
-		init_req_rep_req_resp_pool();
-   
-    if (Signal(SIGPIPE, SIG_IGN) == SIG_ERR)    err_msg(errno, "signal");
+  if (Signal(SIGPIPE, SIG_IGN) == SIG_ERR)
+      logger->error(errno, "NetModSocket::NetModSocket signal");
 }
 
 
 NetModSocket::~NetModSocket() {
-  int clientfd;
-  for (auto map_iter = req_resp_pool.connectionMap.begin(); map_iter != req_resp_pool.connectionMap.end(); map_iter++) {
-    clientfd = map_iter->second;
-    Close(clientfd);
-  }
+  
 }
 
 
@@ -28,16 +29,16 @@
  * 缁戝畾绔彛鍒皊ocket, 濡傛灉涓嶇粦瀹氬垯绯荤粺鑷姩鍒嗛厤涓�涓�
  * @return 0 鎴愬姛锛� 鍏朵粬鍊� 澶辫触鐨勯敊璇爜
 */
-int NetModSocket::bind(int port) {
-  return shmModSocket.bind(port);
+int NetModSocket::bind(int key) {
+  return shmModSocket.bind(key);
 }
 
 /**
  * 寮哄埗缁戝畾绔彛鍒皊ocket, 閫傜敤浜庣▼搴忛潪姝e父鍏抽棴鐨勬儏鍐典笅锛岄噸鍚▼搴忕粦瀹氬師鏉ヨ繕娌¢噴鏀剧殑key
  * @return 0 鎴愬姛锛� 鍏朵粬鍊� 澶辫触鐨勯敊璇爜
 */
-int NetModSocket::force_bind( int port) {
-  return shmModSocket.force_bind(port);
+int NetModSocket::force_bind( int key) {
+  return shmModSocket.force_bind(key);
 }
 
 int NetModSocket::sendandrecv(net_node_t *node_arr, int arrlen, void *send_buf, int send_size, 
@@ -45,8 +46,8 @@
   _sendandrecv_(node_arr,  arrlen, send_buf,send_size, recv_arr, recv_arr_size, -1);
 }
 int NetModSocket::sendandrecv_timeout(net_node_t *node_arr, int arrlen, void *send_buf, int send_size, 
-  net_mod_recv_msg_t ** recv_arr, int *recv_arr_size, int  timeout) {
-  _sendandrecv_(node_arr,  arrlen, send_buf,send_size, recv_arr, recv_arr_size, timeout);
+  net_mod_recv_msg_t ** recv_arr, int *recv_arr_size, int  msec) {
+  _sendandrecv_(node_arr,  arrlen, send_buf,send_size, recv_arr, recv_arr_size, msec);
 }
 int NetModSocket::sendandrecv_nowait(net_node_t *node_arr, int arrlen, void *send_buf, int send_size, 
   net_mod_recv_msg_t ** recv_arr, int *recv_arr_size) {
@@ -54,20 +55,76 @@
 
 }
 
-int NetModSocket::_sendandrecv_(net_node_t *node_arr, int arrlen, void *send_buf, int send_size, 
-  net_mod_recv_msg_t ** recv_arr, int *recv_arr_size, int  timeout = 5 * 1000) {
 
-  int i, n, recv_size,  connfd;
+/* Free thread-specific data buffer */
+void NetModSocket::_destroyConnPool_(void *_pool)
+{
+
+  NetConnPool *mpool = (NetConnPool *)_pool;
+  delete mpool;
+  logger->debug("destory connPool");
+}
+
+ /* One-time key creation function */
+void NetModSocket::_createConnPoolKey_(void)
+{
+  int ret;
+
+  /* Allocate a unique thread-specific data key and save the address
+     of the destructor for thread-specific data buffers */
+
+  ret = pthread_key_create(&poolKey, _destroyConnPool_);
+  if (ret != 0) {
+    logger->error(ret, "pthread_key_create");
+    exit(1);
+  }
+}
+
+int NetModSocket::_sendandrecv_(net_node_t *node_arr, int arrlen, void *send_buf, int send_size, 
+  net_mod_recv_msg_t ** recv_arr, int *recv_arr_size, int  msec ) {
+
+  int i, n, recv_size, connfd;
   net_node_t *node;
   void *recv_buf;
   
   net_mod_request_head_t request_head = {};
  
-  int n_req = 0, n_recv_suc = 0, n_resp;
+  int n_req = 0, n_recv_suc = 0, n_resp =0;
+
    
   net_mod_recv_msg_t *ret_arr = (net_mod_recv_msg_t *)calloc(arrlen, sizeof(net_mod_recv_msg_t));
+
+  int ret;
+  NetConnPool *mpool;
+
+  /* Make first caller allocate key for thread-specific data */
+  ret = pthread_once(&once, _createConnPoolKey_);
+  if (ret != 0) {
+    LoggerFactory::getLogger()->error(errno, "NetModSocket::_sendandrecv_ pthread_once");
+    exit(1);
+  }
+
+  mpool = (NetConnPool *)pthread_getspecific(poolKey);
+  if (mpool == NULL)
+  {
+    /* If first call from this thread, allocate buffer for thread, and save its location */
+    logger->debug("Create connPool");
+    mpool = new NetConnPool();
+    if (mpool == NULL) {
+      LoggerFactory::getLogger()->error(errno, "NetModSocket::_sendandrecv_ malloc");
+      exit(1);
+    }
+
+   
+
+    ret = pthread_setspecific(poolKey, mpool);
+    if (ret != 0) {
+      LoggerFactory::getLogger()->error(errno, "NetModSocket::_sendandrecv_ pthread_setspecific");
+      exit(1);
+    }
+  }
   
-  //init_req_rep_req_resp_pool();
+ 
 
   for (i = 0; i< arrlen; i++) {
 
@@ -84,7 +141,7 @@
       continue;
     }
 
-    if( (connfd = connect(node)) < 0 ) {
+    if( (connfd = mpool->getConn(node->host, node->port)) < 0 ) {
       continue;
     }
 
@@ -94,81 +151,81 @@
     request_head.port = node->port;
     request_head.key = node->key;
     request_head.content_length = send_size;
-
+    request_head.timeout = msec;
 
  // printf("write_request %s:%d\n", request_head.host, request_head.port);
-    if(write_request(connfd, request_head, send_buf, send_size) != 0) {
+    if(write_request(connfd, request_head, send_buf, send_size, NULL, 0) != 0) {
       LoggerFactory::getLogger()->error("write_request failture %s:%d\n", node->host, node->port);
-      close_connect(connfd);
-      // req_resp_pool.conns[i].fd = -1;
+      mpool->closeConn( connfd);
     } else {
       n_req++;
     }
   
   }
 
-// printf(" req_resp_pool.maxi = %d\n",  req_resp_pool.maxi);
+// printf(" mpool->maxi = %d\n",  mpool->maxi);
 // printf(" n_req = %d\n", n_req);
 
-// int tmp = 0;
   while(n_resp < n_req)
   {
-// printf(" while %d\n", tmp++);
     /* Wait for listening/connected descriptor(s) to become ready */
-    if( (req_resp_pool.nready = poll(req_resp_pool.conns, req_resp_pool.maxi + 1, timeout) ) <= 0) {
+    if( (mpool->nready = poll(mpool->conns, mpool->maxi + 1, msec) ) <= 0) {
        // wirite_set 鍜� read_set 鍦ㄦ寚瀹氭椂闂村唴閮芥病鍑嗗濂�
       break;
     }
-// printf("req_resp_pool.nready =%d\n", req_resp_pool.nready);
-    for (i = 0; (i <= req_resp_pool.maxi) && (req_resp_pool.nready > 0); i++) {
-      if ( (connfd = req_resp_pool.conns[i].fd) > 0 ) {
+// printf("mpool->nready =%d\n", mpool->nready);
+    for (i = 0; (i <= mpool->maxi) && (mpool->nready > 0); i++) {
+      if ( (connfd = mpool->conns[i].fd) > 0 ) {
         /* If the descriptor is ready, echo a text line from it */
-        if (req_resp_pool.conns[i].revents & POLLIN )
+        if (mpool->conns[i].revents & POLLIN )
         {
-          req_resp_pool.nready--;
+          mpool->nready--;
 // printf("POLLIN %d\n", connfd);
           if( (n = read_response(connfd, ret_arr+n_recv_suc)) == 0) {
-            
-            // 鎴愬姛鏀跺埌杩斿洖娑堟伅锛屾竻绌鸿鍏ヤ綅
-            req_resp_pool.conns[i].fd = -1;
             n_recv_suc++;
+            // 鎴愬姛鏀跺埌杩斿洖娑堟伅锛屾竻绌鸿鍏ヤ綅
+            mpool->conns[i].fd = -1;
             
-          } else if(n == -1)  {
-            req_resp_pool.conns[i].fd = -1;
-            close_connect(connfd);
-          } else {
-            req_resp_pool.conns[i].fd = -1;
-             
           }
+          else if(n == -1)  {
+            // 缃戠粶閿欒
+            mpool->closeConn( connfd);
+            // mpool->conns[i].fd = -1;
+          } else {
+            // 瀵规柟key鏄叧闂殑
+             mpool->conns[i].fd = -1;
+          }
+
           n_resp++;
 // printf("read response %d\n", n);
           
         }
 
-        if (req_resp_pool.conns[i].revents & POLLOUT ) {
+        if (mpool->conns[i].revents & POLLOUT ) {
   // printf("poll POLLOUT %d\n", connfd);        
         }
 
-        if (req_resp_pool.conns[i].revents & (POLLRDHUP | POLLHUP | POLLERR) )
+        if (mpool->conns[i].revents & (POLLRDHUP | POLLHUP | POLLERR) )
         {
 // printf("poll POLLERR %d\n", connfd);
-          req_resp_pool.nready--;
-          close_connect(connfd);
-          req_resp_pool.conns[i].fd = -1;
+          mpool->nready--;
+          mpool->closeConn( connfd);
+          // mpool->conns[i].fd = -1;
         }
       }
     }
   }
 
-  for (i = 0; i <= req_resp_pool.maxi; i++) {
-    if ( (connfd = req_resp_pool.conns[i].fd) > 0 ) {
+   //瓒呮椂鍚庯紝鍏抽棴瓒呮椂杩炴帴
+  for (i = 0; i <= mpool->maxi; i++) {
+    if ( (connfd = mpool->conns[i].fd) > 0 ) {
       // 鍏抽棴骞舵竻闄ゅ啓鍏ユ垨璇诲彇澶辫触鐨勮繛鎺�
-      close_connect(connfd);
-      req_resp_pool.conns[i].fd = -1;
+      mpool->closeConn( connfd);
+      // mpool->conns[i].fd = -1;
     }
   }
 
-  req_resp_pool.maxi = -1;
+  mpool->maxi = -1;
 
   *recv_arr = ret_arr;
   if(recv_arr_size != NULL) {
@@ -176,6 +233,151 @@
   }
   return n_recv_suc;
      
+}
+
+int NetModSocket::pub(net_node_t *node_arr, int arrlen, char *topic, int topic_size, void *content, int content_size) {
+  return _pub_(node_arr, arrlen, topic, topic_size, content,   content_size, -1);
+}
+
+int NetModSocket::pub_nowait(net_node_t *node_arr, int arrlen, char *topic, int topic_size, void *content, int content_size) {
+  return _pub_(node_arr, arrlen, topic, topic_size, content,   content_size, 0);
+}
+
+int NetModSocket::pub_timeout(net_node_t *node_arr, int arrlen, char *topic, int topic_size, void *content, int content_size, int  msec ) {
+  return _pub_(node_arr, arrlen, topic, topic_size, content, content_size, msec);
+}
+
+
+// int  pub(char *topic, int topic_size, void *content, int content_size, int port);
+
+int NetModSocket::_pub_(net_node_t *node_arr, int arrlen, char *topic, int topic_size, void *content,
+ int content_size, int  timeout) {
+  int i, connfd;
+  net_node_t *node;
+ 
+  net_mod_request_head_t request_head;
+  net_mod_recv_msg_t recv_msg;
+  char portstr[32];
+  int n_req = 0, n_pub_suc = 0, n_resp = 0;
+
+  int ret;
+  NetConnPool *mpool;
+
+  /* Make first caller allocate key for thread-specific data */
+  ret = pthread_once(&once, _createConnPoolKey_);
+  if (ret != 0) {
+    LoggerFactory::getLogger()->error(errno, "NetModSocket::_sendandrecv_ pthread_once");
+    exit(1);
+  }
+
+  mpool = (NetConnPool *)pthread_getspecific(poolKey);
+  if (mpool == NULL)
+  {
+    /* If first call from this thread, allocte buffer for thread, and save its location */
+    mpool = new NetConnPool();
+    if (mpool == NULL) {
+      LoggerFactory::getLogger()->error(errno, "NetModSocket::_sendandrecv_ malloc");
+      exit(1);
+    }
+
+    ret = pthread_setspecific(poolKey, mpool);
+    if (ret != 0) {
+      LoggerFactory::getLogger()->error(errno, "NetModSocket::_sendandrecv_ pthread_setspecific");
+      exit(1);
+    }
+  }
+
+  
+  for (i = 0; i < arrlen; i++) {
+
+    node = &node_arr[i];
+    if(node->host == NULL) {
+      // 鏈湴鍙戦��
+      if(shmModSocket.pub(topic, topic_size, content, content_size, node->key) == 0 ) {
+         n_pub_suc++;
+      }
+     
+    } else {
+      sprintf(portstr, "%d", node->port);
+      if( (connfd = mpool->getConn(node->host, node->port)) < 0 ) {
+        continue;
+      }
+      request_head.mod = BUS;
+      memcpy(request_head.host, node->host, sizeof(request_head.host));
+      request_head.key = node->key;
+      request_head.content_length = content_size;
+      request_head.topic_length = strlen(topic) + 1;
+      request_head.timeout = timeout;
+
+      if(write_request(connfd, request_head, content, content_size, topic, request_head.topic_length) != 0) {
+        LoggerFactory::getLogger()->error(" NetModSocket::_pub_ write_request failture %s:%d\n", node->host, node->port);
+        mpool->closeConn( connfd);
+      } else {
+        n_req++;
+      }
+      
+    }
+  }
+
+  while(n_resp < n_req)
+  {
+    /* Wait for listening/connected descriptor(s) to become ready */
+    if( (mpool->nready = poll(mpool->conns, mpool->maxi + 1, timeout) ) <= 0) {
+       // wirite_set 鍜� read_set 鍦ㄦ寚瀹氭椂闂村唴閮芥病鍑嗗濂�
+      break;
+    }
+// printf("mpool->nready =%d\n", mpool->nready);
+    for (i = 0; (i <= mpool->maxi) && (mpool->nready > 0); i++) {
+      if ( (connfd = mpool->conns[i].fd) > 0 ) {
+        if (mpool->conns[i].revents & POLLIN )
+        {
+          mpool->nready--;
+// printf("POLLIN %d\n", connfd);
+          if( (ret = read_response(connfd, &recv_msg)) == 0) {
+            
+            // 鎴愬姛鏀跺埌杩斿洖娑堟伅锛屾竻绌鸿鍏ヤ綅
+            mpool->conns[i].fd = -1;
+            n_pub_suc++;
+          } 
+          else if(ret == -1)  {
+            // 缃戠粶杩炴帴閿欒
+             mpool->closeConn( connfd);
+          } else {
+            // 瀵规柟鐨刱ey鏄叧闂殑
+            mpool->conns[i].fd = -1;
+          }
+          n_resp++;
+// printf("read response %d\n", n);
+        }
+
+        if (mpool->conns[i].revents & POLLOUT ) {
+  // printf("poll POLLOUT %d\n", connfd);        
+        }
+
+        if (mpool->conns[i].revents & (POLLRDHUP | POLLHUP | POLLERR) )
+        {
+// printf("poll POLLERR %d\n", connfd);
+          mpool->nready--;
+          
+          mpool->conns[i].fd = -1;
+          mpool->closeConn( connfd);
+        }
+      }
+    }
+  }
+
+  //瓒呮椂鍚庯紝鍏抽棴瓒呮椂杩炴帴
+  for (i = 0; i <= mpool->maxi; i++) {
+    if ( (connfd = mpool->conns[i].fd) > 0 ) {
+      // 鍏抽棴骞舵竻闄ゅ啓鍏ユ垨璇诲彇澶辫触鐨勮繛鎺�
+      mpool->closeConn( connfd);
+      // mpool->conns[i].fd = -1;
+    }
+  }
+
+  mpool->maxi = -1;
+   
+  return n_pub_suc;
 }
 
 
@@ -299,131 +501,61 @@
      
 }
 
-// int  pub(char *topic, int topic_size, void *content, int content_size, int port);
-
-int NetModSocket::pub(net_node_t *node_arr, int arrlen, char *topic, int topic_size, void *content, int content_size) {
-  int i, clientfd;
-  net_node_t *node;
- 
-  char *buf;
-  int max_buf_size, buf_size;
- 
-  net_mod_request_head_t request_head;
-  char portstr[32];
-  int nsuc = 0;
-
-  if((buf = (char *)malloc(MAXBUF)) == NULL) {
-    LoggerFactory::getLogger()->error(errno, "NetModSocket::sendandrecv malloc");
-    exit(1);
-  } else {
-     max_buf_size = MAXBUF;
-  }
-  
-  for (i = 0; i< arrlen; i++) {
-
-    node = &node_arr[i];
-    if(node->host == NULL) {
-      // 鏈湴鍙戦��
-      if(shmModSocket.pub(topic, topic_size, content, content_size, node->key) == 0 ) {
-         nsuc++;
-      }
-     
-    } else {
-      sprintf(portstr, "%d", node->port);
-      clientfd = open_clientfd(node->host, portstr);
-      if(clientfd < 0) {
-        continue;
-      }
-
-      request_head.mod = BUS;
-      request_head.key = node->key;
-      request_head.content_length = content_size;
-      request_head.topic_length = strlen(topic) + 1;
-
-      buf_size = NET_MODE_REQUEST_HEAD_LENGTH + content_size + request_head.topic_length;
-
-      if(max_buf_size < buf_size) {
-        if( ( buf = (char *)realloc(buf, buf_size)) == NULL) {
-           LoggerFactory::getLogger()->error(errno, "NetModSocket::pub realloc buf ");
-        } else {
-          max_buf_size = buf_size;
-        }
-        
-      }
-
-      memcpy(buf, NetModSocket::encode_request_head(request_head), NET_MODE_REQUEST_HEAD_LENGTH);
-      memcpy(buf + NET_MODE_REQUEST_HEAD_LENGTH, content, content_size);
-      memcpy(buf + NET_MODE_REQUEST_HEAD_LENGTH + content_size, topic, request_head.topic_length);
- 
-      if(rio_writen(clientfd, buf, buf_size) != buf_size ) {
-        LoggerFactory::getLogger()->error(errno, "NetModSocket::pub rio_writen conent ");
-      } else {
-        nsuc++;
-      }
-      close(clientfd);
-    }
-
-   
-  }
-
-  free(buf);
-  return nsuc;
-}
 
 
 /**
  * 鍙戦�佷俊鎭�
- * @port 鍙戦�佺粰璋�
+ * @key 鍙戦�佺粰璋�
  * @return 0 鎴愬姛锛� 鍏朵粬鍊� 澶辫触鐨勯敊璇爜
  */
-int NetModSocket::sendto(const void *buf, const int size, const int port){
-  return shmModSocket.sendto(buf, size,port);
+int NetModSocket::sendto(const void *buf, const int size, const int key){
+  return shmModSocket.sendto(buf, size, key);
 }
 
 // 鍙戦�佷俊鎭秴鏃惰繑鍥炪�� @sec 绉� 锛� @nsec 绾崇
-int NetModSocket::sendto_timeout(const void *buf, const int size, const int port, int sec, int nsec){
+int NetModSocket::sendto_timeout(const void *buf, const int size, const int key, int sec, int nsec){
   struct timespec timeout = {sec, nsec};
-  return shmModSocket.sendto_timeout(buf, size, port, &timeout);
+  return shmModSocket.sendto_timeout(buf, size, key, &timeout);
 }
 
 // 鍙戦�佷俊鎭珛鍒昏繑鍥炪��
-int NetModSocket::sendto_nowait(const void *buf, const int size, const int port){
-  return shmModSocket.sendto_nowait(buf, size,port);
+int NetModSocket::sendto_nowait(const void *buf, const int size, const int key){
+  return shmModSocket.sendto_nowait(buf, size, key);
 }
 
 /**
  * 鎺ユ敹淇℃伅
- * @port 浠庤皝鍝噷鏀跺埌鐨勪俊鎭�
+ * @key 浠庤皝鍝噷鏀跺埌鐨勪俊鎭�
  * @return 0 鎴愬姛锛� 鍏朵粬鍊� 澶辫触鐨勯敊璇爜
 */
-int NetModSocket::recvfrom(void **buf, int *size, int *port) {
-  return shmModSocket.recvfrom(buf, size, port);
+int NetModSocket::recvfrom(void **buf, int *size, int *key) {
+  return shmModSocket.recvfrom(buf, size, key);
 }
 // 鎺ュ彈淇℃伅瓒呮椂杩斿洖銆� @sec 绉� 锛� @nsec 绾崇
-int NetModSocket::recvfrom_timeout(void **buf, int *size, int *port, int sec, int nsec){
+int NetModSocket::recvfrom_timeout(void **buf, int *size, int *key, int sec, int nsec){
   struct timespec timeout = {sec, nsec};
-  return shmModSocket.recvfrom_timeout(buf, size, port, &timeout);
+  return shmModSocket.recvfrom_timeout(buf, size, key, &timeout);
 }
 
-int NetModSocket::recvfrom_nowait(void **buf, int *size, int *port){
-  return shmModSocket.recvfrom_nowait(buf, size, port);
+int NetModSocket::recvfrom_nowait(void **buf, int *size, int *key){
+  return shmModSocket.recvfrom_nowait(buf, size, key);
 }
 
 /**
  * 鍙戦�佽姹備俊鎭苟绛夊緟鎺ユ敹搴旂瓟
- * @port 鍙戦�佺粰璋�
+ * @key 鍙戦�佺粰璋�
  * @return 0 鎴愬姛锛� 鍏朵粬鍊� 澶辫触鐨勯敊璇爜
 */
-int NetModSocket::sendandrecv( const void *send_buf, const int send_size, const int port, void **recv_buf, int *recv_size){
-  return shmModSocket.sendandrecv(send_buf, send_size, port, recv_buf, recv_size);
+int NetModSocket::sendandrecv( const void *send_buf, const int send_size, const int key, void **recv_buf, int *recv_size){
+  return shmModSocket.sendandrecv(send_buf, send_size, key, recv_buf, recv_size);
 }
 // 瓒呮椂杩斿洖銆� @sec 绉� 锛� @nsec 绾崇
-int NetModSocket::sendandrecv_timeout( const void *send_buf, const int send_size, const int port, void **recv_buf, int *recv_size, int sec, int nsec){
+int NetModSocket::sendandrecv_timeout( const void *send_buf, const int send_size, const int key, void **recv_buf, int *recv_size, int sec, int nsec){
   struct timespec timeout = {sec, nsec};
-  return shmModSocket.sendandrecv_timeout(send_buf, send_size, port, recv_buf, recv_size, &timeout);
+  return shmModSocket.sendandrecv_timeout(send_buf, send_size, key, recv_buf, recv_size, &timeout);
 }
-int NetModSocket::sendandrecv_nowait( const void *send_buf, const int send_size, const int port, void **recv_buf, int *recv_size) {
-  return shmModSocket.sendandrecv_nowait(send_buf, send_size, port, recv_buf, recv_size);
+int NetModSocket::sendandrecv_nowait( const void *send_buf, const int send_size, const int key, void **recv_buf, int *recv_size) {
+  return shmModSocket.sendandrecv_nowait(send_buf, send_size, key, recv_buf, recv_size);
 }
 
 
@@ -440,18 +572,18 @@
  * 璁㈤槄鎸囧畾涓婚
  * @topic 涓婚
  * @size 涓婚闀垮害
- * @port 鎬荤嚎绔彛
+ * @key 鎬荤嚎绔彛
  */
-int  NetModSocket::sub( void *topic, int size, int port){
-  return shmModSocket.sub((char *)topic,  size,  port);
+int  NetModSocket::sub( void *topic, int size, int key){
+  return shmModSocket.sub((char *)topic,  size,  key);
 }
 // 瓒呮椂杩斿洖銆� @sec 绉� 锛� @nsec 绾崇
-int  NetModSocket::sub_timeout( void *topic, int size, int port, int sec, int nsec){
+int  NetModSocket::sub_timeout( void *topic, int size, int key, int sec, int nsec){
   struct timespec timeout = {sec, nsec};
-  return shmModSocket.sub_timeout((char *)topic,  size,  port, &timeout);
+  return shmModSocket.sub_timeout((char *)topic,  size,  key, &timeout);
 }
-int  NetModSocket::sub_nowait( void *topic, int size, int port){
-  return shmModSocket.sub_nowait((char *)topic,  size,  port);
+int  NetModSocket::sub_nowait( void *topic, int size, int key){
+  return shmModSocket.sub_nowait((char *)topic,  size,  key);
 }
 
 
@@ -460,18 +592,18 @@
  * 鍙栨秷璁㈤槄鎸囧畾涓婚
  * @topic 涓婚
  * @size 涓婚闀垮害
- * @port 鎬荤嚎绔彛
+ * @key 鎬荤嚎绔彛
  */
-int  NetModSocket::desub( void *topic, int size, int port){
-  return shmModSocket.desub((char *)topic,  size,  port);
+int  NetModSocket::desub( void *topic, int size, int key){
+  return shmModSocket.desub((char *)topic,  size,  key);
 }
 // 瓒呮椂杩斿洖銆� @sec 绉� 锛� @nsec 绾崇
-int  NetModSocket::desub_timeout( void *topic, int size, int port, int sec, int nsec){
+int  NetModSocket::desub_timeout( void *topic, int size, int key, int sec, int nsec){
   struct timespec timeout = {sec, nsec};
-  return shmModSocket.desub_timeout((char *)topic,  size,  port, &timeout);
+  return shmModSocket.desub_timeout((char *)topic,  size,  key, &timeout);
 }
-int  NetModSocket::desub_nowait( void *topic, int size, int port){
-  return shmModSocket.desub_nowait((char *)topic,  size,  port);
+int  NetModSocket::desub_nowait( void *topic, int size, int key){
+  return shmModSocket.desub_nowait((char *)topic,  size,  key);
 }
 
 
@@ -480,18 +612,18 @@
  * 鍙戝竷涓婚
  * @topic 涓婚
  * @content 涓婚鍐呭
- * @port 鎬荤嚎绔彛
+ * @key 鎬荤嚎绔彛
  */
-int  NetModSocket::pub( char *topic, int topic_size, void *content, int content_size, int port){
-  return shmModSocket.pub(topic, topic_size, content, content_size, port);
+int  NetModSocket::pub( char *topic, int topic_size, void *content, int content_size, int key){
+  return shmModSocket.pub(topic, topic_size, content, content_size, key);
 }
 //  瓒呮椂杩斿洖銆� @sec 绉� 锛� @nsec 绾崇
-int  NetModSocket::pub_timeout( char *topic, int topic_size, void *content, int content_size, int port, int sec, int nsec){
+int  NetModSocket::pub_timeout( char *topic, int topic_size, void *content, int content_size, int key, int sec, int nsec){
   struct timespec timeout = {sec, nsec};
-  return shmModSocket.pub_timeout(topic, topic_size, content, content_size, port, &timeout);
+  return shmModSocket.pub_timeout(topic, topic_size, content, content_size, key, &timeout);
 }
-int  NetModSocket::pub_nowait( char *topic, int topic_size, void *content, int content_size, int port){
-  return shmModSocket.pub_nowait(topic, topic_size, content, content_size, port);
+int  NetModSocket::pub_nowait( char *topic, int topic_size, void *content, int content_size, int key){
+  return shmModSocket.pub_nowait(topic, topic_size, content, content_size, key);
 }
 
 
@@ -516,9 +648,8 @@
 
 //======================================================================================
 
-
-
-int NetModSocket::write_request(int clientfd, net_mod_request_head_t &request_head, void *send_buf, int send_size) {
+int NetModSocket::write_request(int clientfd, net_mod_request_head_t &request_head, 
+  void *content_buf, int content_size, void *topic_buf, int topic_size) {
  
   int buf_size;
   char *buf;
@@ -530,7 +661,7 @@
     max_buf_size = MAXBUF;
   }
 
-  buf_size = send_size + NET_MODE_REQUEST_HEAD_LENGTH;
+  buf_size = NET_MODE_REQUEST_HEAD_LENGTH + content_size + topic_size  ;
   if(max_buf_size < buf_size) {
     
     if((buf = (char *)realloc(buf, buf_size)) == NULL) {
@@ -542,7 +673,9 @@
   }
 
   memcpy(buf, NetModSocket::encode_request_head(request_head), NET_MODE_REQUEST_HEAD_LENGTH);
-  memcpy(buf + NET_MODE_REQUEST_HEAD_LENGTH, send_buf, send_size);
+  memcpy(buf + NET_MODE_REQUEST_HEAD_LENGTH, content_buf, content_size);
+  if(topic_size != 0 ) 
+    memcpy(buf + NET_MODE_REQUEST_HEAD_LENGTH + content_size, topic_buf, topic_size);
 
   if(rio_writen(clientfd, buf, buf_size) != buf_size ) {
     LoggerFactory::getLogger()->error(errno, "NetModSocket::write_request  rio_writen");
@@ -572,7 +705,7 @@
   response_head =  NetModSocket::decode_response_head(response_head_bs);
 // printf(">>>> read_response %s\n", response_head.host);
   if(response_head.code != 0) {
-    // 瀵规柟娌℃湁瀵瑰簲鐨刱ey
+    // 浠g悊鏈嶅姟娌¤兘鎴愬姛鍙戦�佺粰瀵瑰簲鐨刱ey
     return 1;
   }
 
@@ -598,96 +731,7 @@
 
 
 
-void  NetModSocket::init_req_rep_req_resp_pool()
-{
-  /* Initially, there are no connected descriptors */
-  int i;
-  req_resp_pool.maxi = -1;                   //line:conc:echoservers:beginempty
-  for (i = 0; i < OPEN_MAX; i++) {
-    req_resp_pool.conns[i].fd = -1; 
-    req_resp_pool.conns[i].events = 0;      
-  }
 
-}
-
-int NetModSocket::connect( net_node_t *node) {
-  std::map<std::string, int>::iterator mapIter;
-  int connfd;
-  int i;
-  char mapKey[256];
-  char portstr[32];
-
-  sprintf(mapKey, "%s:%d", node->host, node->port);
-  mapIter =  req_resp_pool.connectionMap.find(mapKey);
-  if( mapIter != req_resp_pool.connectionMap.end()) {
-    connfd = mapIter->second;
-// printf("hit: %s\n", mapKey);
-  } else {
-// printf("mis: %s\n", mapKey);     
-    sprintf(portstr, "%d", node->port);
-// printf("open before: %s\n", mapKey); 
-    connfd = open_clientfd(node->host, portstr);
-// printf("open after: %s\n", mapKey); 
-    if(connfd < 0) {
-      LoggerFactory::getLogger()->error(errno, "connect %s:%d ", node->host, node->port);
-      return -1;
-    }
-    req_resp_pool.connectionMap.insert({mapKey, connfd});
-  }
-
-  
-  for (i = 0; i < OPEN_MAX; i++) { /* Find an available slot */
-    if (req_resp_pool.conns[i].fd < 0)
-    {
-      /* Add connected descriptor to the req_resp_pool */
-      req_resp_pool.conns[i].fd = connfd;  
-               
-      req_resp_pool.conns[i].events = POLLIN;
-      /* Add the descriptor to descriptor set */
-      break;
-    }
-  }
-
-  if (i > req_resp_pool.maxi)      
-      req_resp_pool.maxi = i;   
-
-  if (i == OPEN_MAX) {
-    /* Couldn't find an empty slot */
-    LoggerFactory::getLogger()->error(errno, "add_client error: Too many clients");
-    return -1;
-  }
-
-  
-  return connfd;
-}
-
-void NetModSocket::close_connect(int connfd) {
-  int i;
-  char mapKey[256];
-  std::map<std::string, int>::iterator map_iter;
-  if(close(connfd) != 0) {
-    LoggerFactory::getLogger()->error(errno, "NetModSocket::close_connect close");
-  }
- 
-
-  for (i = 0; i <= req_resp_pool.maxi; i++) {
-    if(req_resp_pool.conns[i].fd == connfd) {
-      req_resp_pool.conns[i].fd = -1;
-    }
-  }
-
-  for ( map_iter = req_resp_pool.connectionMap.begin(); map_iter != req_resp_pool.connectionMap.end(); ) {
-    if(connfd == map_iter->second) {
-// std::cout << "map_iter->first==" << map_iter->first << std::endl;
-     map_iter = req_resp_pool.connectionMap.erase(map_iter);
-    } else {
-      ++map_iter;
-    }
-  }
-
-  LoggerFactory::getLogger()->debug( "closed %d\n", connfd);
-
-}
 /**
   uint32_t mod;
   char host[NI_MAXHOST];
@@ -717,6 +761,9 @@
 
   tmp_ptr += 4;
   PUT(tmp_ptr, htonl(head.topic_length));
+
+  tmp_ptr += 4;
+  PUT_INT32(tmp_ptr, htonl(head.timeout));
   
   
   return headbs;
@@ -743,6 +790,9 @@
 
   tmp_ptr += 4;
   head.topic_length = ntohl(GET(tmp_ptr));
+
+  tmp_ptr += 4;
+  head.timeout = ntohl(GET_INT32(tmp_ptr));
  
   return head;
 }
@@ -795,3 +845,4 @@
 
   return head;
 }
+

--
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