From c46be6db32872bfd7c4010b43526b5e6bc0fa6a5 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期一, 25 一月 2021 14:04:59 +0800
Subject: [PATCH] update

---
 src/socket/shm_socket.cpp |  187 ++++++++++++++++++++++++----------------------
 1 files changed, 97 insertions(+), 90 deletions(-)

diff --git a/src/socket/shm_socket.cpp b/src/socket/shm_socket.cpp
index 0ae3027..25c3930 100644
--- a/src/socket/shm_socket.cpp
+++ b/src/socket/shm_socket.cpp
@@ -30,8 +30,8 @@
 static inline int  _shm_socket_check_key(shm_socket_t *socket) {
    void *tmp_ptr = mm_get_by_key(socket->key);
     if (tmp_ptr!= NULL && tmp_ptr != (void *)1 && !socket->force_bind ) {
-      bus_errno = ESHM_BUS_KEY_INUSED;
-      logger->error("%s. key = %d ", bus_strerror(bus_errno), socket->key);
+      bus_errno = EBUS_KEY_INUSED;
+      logger->error("%s. key = %d ", bus_strerror(EBUS_KEY_INUSED), socket->key);
       return 0;
     }
     return 1;
@@ -52,7 +52,7 @@
   logger->debug("shm_open_socket\n");
   shm_socket_t *socket = (shm_socket_t *)calloc(1, sizeof(shm_socket_t));
   socket->socket_type = socket_type;
-  socket->key = -1;
+  socket->key = 0;
   socket->force_bind = false;
   socket->dispatch_thread = 0;
   socket->status = SHM_CONN_CLOSED;
@@ -127,14 +127,14 @@
 
   int key;
   hashtable_t *hashtable = mm_get_hashtable();
-  if (socket->key == -1) {
+  if (socket->key == 0) {
     key = hashtable_alloc_key(hashtable);
     socket->key = key;
   } else {
 
    if(!_shm_socket_check_key(socket)) {
-     bus_errno = ESHM_BUS_KEY_INUSED;
-     return ESHM_BUS_KEY_INUSED;
+     bus_errno = EBUS_KEY_INUSED;
+     return EBUS_KEY_INUSED;
    }
   }
 
@@ -163,7 +163,7 @@
   shm_socket_t *client_socket;
   shm_msg_t src;
 
-  if (socket->acceptQueue->pop(src)) {
+  if (socket->acceptQueue->pop(src) == 0) {
 
     // print_msg("===accept:", src);
     client_key = src.key;
@@ -190,7 +190,7 @@
     msg.size = 0;
     msg.type = SHM_SOCKET_OPEN_REPLY;
 
-    if (client_socket->remoteQueue->push_timeout(msg, &timeout)) {
+    if (client_socket->remoteQueue->push(msg, &timeout, BUS_TIMEOUT_FLAG) == 0) {
       client_socket->status = SHM_CONN_ESTABLISHED;
       return client_socket;
     } else {
@@ -220,12 +220,12 @@
     return -1;
   }
 
-  if (socket->key == -1) {
+  if (socket->key == 0) {
     socket->key = hashtable_alloc_key(hashtable);
   } else {
     if(!_shm_socket_check_key(socket)) {
-      bus_errno = ESHM_BUS_KEY_INUSED;
-      return ESHM_BUS_KEY_INUSED;
+      bus_errno = EBUS_KEY_INUSED;
+      return EBUS_KEY_INUSED;
     }
   }
 
@@ -243,10 +243,10 @@
   msg.key = socket->key;
   msg.size = 0;
   msg.type = SHM_SOCKET_OPEN;
-  socket->remoteQueue->push_timeout(msg, &timeout);
+  socket->remoteQueue->push(msg, &timeout, BUS_TIMEOUT_FLAG);
 
   //鎺ュ彈open reply
-  if (socket->queue->pop(msg)) {
+  if (socket->queue->pop(msg) == 0) {
     // 鍦ㄨ繖閲宻erver绔凡缁忓噯澶囧ソ鎺ュ彈瀹㈡埛绔彂閫佽姹備簡,瀹屾垚涓庢湇鍔$鐨勮繛鎺�
     if (msg.type == SHM_SOCKET_OPEN_REPLY) {
       socket->status = SHM_CONN_ESTABLISHED;
@@ -283,7 +283,7 @@
   dest.buf = mm_malloc(size);
   memcpy(dest.buf, buf, size);
 
-  if (socket->remoteQueue->push(dest)) {
+  if (socket->remoteQueue->push(dest) == 0) {
     return 0;
   } else {
     logger->error(errno, "connection has been closed!");
@@ -300,7 +300,7 @@
   }
   shm_msg_t src;
 
-  if (socket->messageQueue->pop(src)) {
+  if (socket->messageQueue->pop(src) == 0) {
     void *_buf = malloc(src.size);
     memcpy(_buf, src.buf, src.size);
     *buf = _buf;
@@ -315,10 +315,10 @@
 
 // 鐭繛鎺ユ柟寮忓彂閫�
 int shm_sendto(shm_socket_t *socket, const void *buf, const int size,
-               const int key, const struct timespec *timeout, const int flags) {
+               const int key, const struct timespec *timeout, const int flag) {
 
   int s;
-  bool rv;
+  int rv;
 
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
     logger->error( "shm_socket.shm_sendto: Can't invoke shm_sendto method in a %d type socket  which is "
@@ -333,13 +333,13 @@
     err_exit(s, "shm_sendto : pthread_mutex_lock");
 
   if (socket->queue == NULL) {
-    if (socket->key == -1) {
+    if (socket->key == 0) {
       socket->key = hashtable_alloc_key(hashtable);
     } else {
 
      if(!_shm_socket_check_key(socket)) {
-        bus_errno = ESHM_BUS_KEY_INUSED;
-        return ESHM_BUS_KEY_INUSED;
+        bus_errno = EBUS_KEY_INUSED;
+        return EBUS_KEY_INUSED;
      }
 
     }
@@ -349,6 +349,9 @@
 
   if ((s = pthread_mutex_unlock(&(socket->mutex))) != 0)
     err_exit(s, "shm_sendto : pthread_mutex_unlock");
+  
+  // There is some case where a socket need to send to himeself, for example when bus server need to stop, he need to send himself 
+  // a top message.
   
   // if (key == socket->key) {
   //   logger->error( "can not send to your self!");
@@ -369,81 +372,62 @@
   dest.buf = mm_malloc(size);
   memcpy(dest.buf, buf, size);
 
-  // printf("shm_sendto push before\n");
- 
-  if(flags & SHM_MSG_NOWAIT != 0) {
-    rv = remoteQueue->push_nowait(dest);
-  } else if(timeout != NULL) {
-  	rv = remoteQueue->push_timeout(dest, timeout);
-  } else {
-  	rv = remoteQueue->push(dest);
-  }
+  rv = remoteQueue->push(dest, timeout, flag);
 
-  if (rv) {
+  if (rv == 0) {
     // printf("shm_sendto push after\n");
-    delete remoteQueue;
     return 0;
   } else {
-    delete remoteQueue;
     mm_free(dest.buf);
-    if(errno == EAGAIN) {
-      bus_errno = EBUS_TIMEOUT;
-      logger->error("sendto key %d failed, %s", key, bus_strerror(bus_errno));
-      return EBUS_TIMEOUT;
-    } else {
-      logger->error(errno, "sendto key %d failed!", key);
-      return -1;
-    }
-   
-   
+    logger->debug("sendto key %d failed %s", key, bus_strerror(rv));
+    return rv;
   }
 }
 
-// 鐭繛鎺ユ柟寮忔帴鍙�
-int shm_recvfrom(shm_socket_t *socket, void **buf, int *size, int *key,  struct timespec *timeout,  int flags) {
-  int s;
-  bool rv;
+int shm_recvfrom2(shm_socket_t *socket, void **buf, int *size, int *key,  const struct timespec *timeout,  int flag) {
+  return 501;
+}
 
-  if (socket->socket_type != SHM_SOCKET_DGRAM) {
+// 鐭繛鎺ユ柟寮忔帴鍙�
+int shm_recvfrom(shm_socket_t *sokt, void **buf, int *size, int *key,  const struct timespec *timeout,  int flag) {
+  int s;
+  int rv;
+
+  if (sokt->socket_type != SHM_SOCKET_DGRAM) {
     logger->error("shm_socket.shm_recvfrom: Can't invoke shm_recvfrom method in a %d type socket  which "
                 "is not a SHM_SOCKET_DGRAM socket ",
-             socket->socket_type);
+             sokt->socket_type);
     exit(1);
   }
   hashtable_t *hashtable = mm_get_hashtable();
 
-  if ((s = pthread_mutex_lock(&(socket->mutex))) != 0)
+  if ((s = pthread_mutex_lock(&(sokt->mutex))) != 0)
     err_exit(s, "shm_recvfrom : pthread_mutex_lock");
  
-  if (socket->queue == NULL) {
-    if (socket->key == -1) {
-      socket->key = hashtable_alloc_key(hashtable);
+  if (sokt->queue == NULL) {
+    if (sokt->key == 0) {
+      sokt->key = hashtable_alloc_key(hashtable);
     } else {
 
-      if(!_shm_socket_check_key(socket)) {
-        bus_errno = ESHM_BUS_KEY_INUSED;
-        return ESHM_BUS_KEY_INUSED;
+      if(!_shm_socket_check_key(sokt)) {
+        bus_errno = EBUS_KEY_INUSED;
+        return EBUS_KEY_INUSED;
       }
     }
 
-    socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
+    sokt->queue = new SHMQueue<shm_msg_t>(sokt->key, 16);
   }
   
-  if ((s = pthread_mutex_unlock(&(socket->mutex))) != 0)
+  if ((s = pthread_mutex_unlock(&(sokt->mutex))) != 0)
     err_exit(s, "shm_recvfrom : pthread_mutex_unlock");
 
   shm_msg_t src;
-  // printf("shm_recvfrom pop before\n");
  
-   if(flags & SHM_MSG_NOWAIT != 0) {
-    rv = socket->queue->pop_nowait(src);
-  } else if(timeout != NULL) {
-    rv = socket->queue->pop_timeout(src, timeout);
-  } else {
-    rv = socket->queue->pop(src);
-  }
+printf ("====== before ======\n");
+  rv = sokt->queue->pop(src, timeout, flag);
+printf ("====== after ======\n %d", rv);
 
-  if (rv) {
+  if (rv == 0) {
     if(buf != NULL) {
       void *_buf = malloc(src.size);
       memcpy(_buf, src.buf, src.size);
@@ -457,10 +441,11 @@
       *key = src.key;
 
     mm_free(src.buf);
-    // printf("shm_recvfrom pop after\n");
     return 0;
   } else {
-    return -1;
+    logger->debug("shm_recvfrom failed %s", bus_strerror(rv));
+    return rv;
+
   }
 }
 
@@ -498,10 +483,10 @@
 }
 
 
-
-int shm_sendandrecv_safe(shm_socket_t *socket, const void *send_buf,
+// use thread local
+int _shm_sendandrecv_thread_local(shm_socket_t *socket, const void *send_buf,
                     const int send_size, const int send_key, void **recv_buf,
-                    int *recv_size,  struct timespec *timeout,  int flags) {
+                    int *recv_size,  const struct timespec *timeout,  int flags) {
   int recv_key;
   int rv;
 
@@ -526,7 +511,7 @@
   if (tmp_socket == NULL)
   {
     /* If first call from this thread, allocate buffer for thread, and save its location */
-    logger->debug("%d create tmp socket\n", pthread_self() );
+    logger->debug("%ld create tmp socket\n", (long)pthread_self() );
     tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
 
     rv =  pthread_setspecific(_tmp_recv_socket_key_, tmp_socket);
@@ -538,18 +523,44 @@
 
   if ((rv = shm_sendto(tmp_socket, send_buf, send_size, send_key, timeout, flags)) == 0) {
     rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_key, timeout, flags);
-    
     return rv;
   } else {
-     
     return rv;
   }
-  return -1;
+}
+
+int _shm_sendandrecv_alloc_new(shm_socket_t *socket, const void *send_buf,
+                    const int send_size, const int send_key, void **recv_buf,
+                    int *recv_size,  const struct timespec *timeout,  int flags) {
+  int recv_key;
+  int rv;
+
+  // 鐢╰hread local 淇濊瘉姣忎釜绾跨▼鐢ㄤ竴涓嫭鍗犵殑socket鎺ュ彈瀵规柟杩斿洖鐨勪俊鎭�
+  shm_socket_t *tmp_socket;
+
+  if (socket->socket_type != SHM_SOCKET_DGRAM) {
+    logger->error( "shm_socket.shm_sendandrecv: Can't invoke shm_sendandrecv method in a %d type socket  "
+                "which is not a SHM_SOCKET_DGRAM socket ",
+             socket->socket_type);
+    exit(1);
+  }
+ 
+  /* If first call from this thread, allocate buffer for thread, and save its location */
+  // logger->debug("%d create tmp socket\n", pthread_self() );
+  tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
+
+  if ((rv = shm_sendto(tmp_socket, send_buf, send_size, send_key, timeout, flags)) == 0) {
+    rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_key, timeout, flags);
+  } 
+   
+  shm_close_socket(tmp_socket);  
+  return rv;
+ 
 }
 
 int shm_sendandrecv_unsafe(shm_socket_t *socket, const void *send_buf,
                     const int send_size, const int send_key, void **recv_buf,
-                    int *recv_size,  struct timespec *timeout,  int flags) {
+                    int *recv_size,  const struct timespec *timeout,  int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
     logger->error( "shm_socket.shm_sendandrecv_unsafe : Can't invoke shm_sendandrecv method in a %d type socket  "
                 "which is not a SHM_SOCKET_DGRAM socket ",
@@ -571,8 +582,8 @@
 
 int shm_sendandrecv(shm_socket_t *socket, const void *send_buf,
                     const int send_size, const int send_key, void **recv_buf,
-                    int *recv_size,  struct timespec *timeout,  int flags) {
-  return  shm_sendandrecv_safe(socket, send_buf, send_size, send_key,recv_buf, recv_size, timeout,  flags);
+                    int *recv_size,  const struct timespec *timeout,  int flags) {
+  return  _shm_sendandrecv_thread_local(socket, send_buf, send_size, send_key,recv_buf, recv_size, timeout,  flags);
 }
 
 
@@ -615,11 +626,11 @@
   shm_socket_t *client_socket;
   std::map<int, shm_socket_t *>::iterator iter;
 
-  while (socket->queue->pop(src)) {
+  while (socket->queue->pop(src) == 0) {
 
     switch (src.type) {
     case SHM_SOCKET_OPEN:
-      socket->acceptQueue->push_timeout(src, &timeout);
+      socket->acceptQueue->push(src, &timeout, BUS_TIMEOUT_FLAG);
       break;
     case SHM_SOCKET_CLOSE:
       _server_close_conn_to_client(socket, src.key);
@@ -630,7 +641,7 @@
       if (iter != socket->clientSocketMap->end()) {
         client_socket = iter->second;
         // print_msg("_server_run_msg_rev push before", src);
-        client_socket->messageQueue->push_timeout(src, &timeout);
+        client_socket->messageQueue->push(src, &timeout, BUS_TIMEOUT_FLAG);
         // print_msg("_server_run_msg_rev push after", src);
       }
 
@@ -658,14 +669,14 @@
   struct timespec timeout = {1, 0};
   shm_msg_t src;
 
-  while (socket->queue->pop(src)) {
+  while (socket->queue->pop(src) == 0) {
     switch (src.type) {
 
     case SHM_SOCKET_CLOSE:
       _client_close_conn_to_server(socket);
       break;
     case SHM_COMMON_MSG:
-      socket->messageQueue->push_timeout(src, &timeout);
+      socket->messageQueue->push(src, &timeout, BUS_TIMEOUT_FLAG);
       break;
     default:
        logger->error( "shm_socket._client_run_msg_rev: undefined message type.");
@@ -685,7 +696,7 @@
   close_msg.size = 0;
   close_msg.type = SHM_SOCKET_CLOSE;
   if (notifyRemote && socket->remoteQueue != NULL) {
-    socket->remoteQueue->push_timeout(close_msg, &timeout);
+    socket->remoteQueue->push(close_msg, &timeout, BUS_TIMEOUT_FLAG);
   }
 
   if (socket->queue != NULL) {
@@ -693,10 +704,7 @@
     socket->queue = NULL;
   }
 
-  if (socket->remoteQueue != NULL) {
-    delete socket->remoteQueue;
-    socket->remoteQueue = NULL;
-  }
+  
 
   if (socket->messageQueue != NULL) {
     delete socket->messageQueue;
@@ -714,8 +722,7 @@
          iter != socket->clientSocketMap->end(); iter++) {
       client_socket = iter->second;
 
-      client_socket->remoteQueue->push_timeout(close_msg, &timeout);
-      delete client_socket->remoteQueue;
+      client_socket->remoteQueue->push(close_msg, &timeout, BUS_TIMEOUT_FLAG);
       client_socket->remoteQueue = NULL;
 
       delete client_socket->messageQueue;

--
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