From 8b89e81b09adbb06f6e5e64aa115a1eef6e75b57 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期一, 30 十一月 2020 11:10:15 +0800
Subject: [PATCH] update

---
 src/socket/shm_socket.c |  285 ++++++++++++++++++++++++++++++++++++--------------------
 1 files changed, 183 insertions(+), 102 deletions(-)

diff --git a/src/socket/shm_socket.c b/src/socket/shm_socket.c
index 52251e6..8fc4d94 100644
--- a/src/socket/shm_socket.c
+++ b/src/socket/shm_socket.c
@@ -3,69 +3,98 @@
 #include "logger_factory.h"
 #include <map>
 
-static Logger logger = LoggerFactory::getLogger();
+static Logger *logger = LoggerFactory::getLogger();
+
+
 
 void print_msg(char *head, shm_msg_t &msg) {
-  // err_msg(0, "%s: port=%d, type=%d\n", head, msg.port, msg.type);
+  // err_msg(0, "%s: key=%d, type=%d\n", head, msg.key, msg.type);
 }
 
-void *_server_run_msg_rev(void *_socket);
+static void *_server_run_msg_rev(void *_socket);
 
-void *_client_run_msg_rev(void *_socket);
+static void *_client_run_msg_rev(void *_socket);
 
-int _shm_close_dgram_socket(shm_socket_t *socket);
+static int _shm_close_dgram_socket(shm_socket_t *socket);
 
-int _shm_close_stream_socket(shm_socket_t *socket, bool notifyRemote);
+static int _shm_close_stream_socket(shm_socket_t *socket, bool notifyRemote);
 
-SHMQueue<shm_msg_t> *_attach_remote_queue(int port);
+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 ) {
+      err_exit(0, "key %d has already been in used!", socket->key);
+      return 0;
+    }
+    return 1;
+}
+
+SHMQueue<shm_msg_t> *_attach_remote_queue(int key);
+
+
+
+size_t shm_socket_remove_keys(int keys[], size_t length) {
+  return SHMQueue<shm_msg_t>::remove_queues(keys,  length);
+}
 
 shm_socket_t *shm_open_socket(shm_socket_type_t socket_type) {
   shm_socket_t *socket = (shm_socket_t *)calloc(1, sizeof(shm_socket_t));
   socket->socket_type = socket_type;
-  socket->port = -1;
+  socket->key = -1;
+  socket->force_bind = false;
   socket->dispatch_thread = 0;
   socket->status = SHM_CONN_CLOSED;
-
+  socket->mutex = SemUtil::get(IPC_PRIVATE, 1);
   return socket;
 }
 
 int shm_close_socket(shm_socket_t *socket) {
+  
+  int ret;
   switch (socket->socket_type) {
-  case SHM_SOCKET_STREAM:
-    return _shm_close_stream_socket(socket, true);
-  case SHM_SOCKET_DGRAM:
-    return _shm_close_dgram_socket(socket);
-  default:
-    return -1;
+    case SHM_SOCKET_STREAM:
+      ret =  _shm_close_stream_socket(socket, true);
+      break;
+    case SHM_SOCKET_DGRAM:
+      ret =  _shm_close_dgram_socket(socket);
+      break;
+    default:
+      break;
   }
-  return -1;
+  SemUtil::remove(socket->mutex);
+  free(socket);
+  return ret;
 }
 
-int shm_socket_bind(shm_socket_t *socket, int port) {
-  socket->port = port;
+int shm_socket_bind(shm_socket_t *socket, int key) {
+  socket->key = key;
+  return 0;
+}
+
+int shm_socket_force_bind(shm_socket_t *socket, int key) {
+  socket->force_bind = true;
+  socket->key = key;
   return 0;
 }
 
 int shm_listen(shm_socket_t *socket) {
 
   if (socket->socket_type != SHM_SOCKET_STREAM) {
-    err_exit(0, "can not invoke shm_listen method with a socket which is not a "
+    logger->error("can not invoke shm_listen method with a socket which is not a "
                 "SHM_SOCKET_STREAM socket");
+    exit(1);
   }
 
-  int port;
+  int key;
   hashtable_t *hashtable = mm_get_hashtable();
-  if (socket->port == -1) {
-    port = hashtable_alloc_key(hashtable);
-    socket->port = port;
+  if (socket->key == -1) {
+    key = hashtable_alloc_key(hashtable);
+    socket->key = key;
   } else {
 
-    if (hashtable_get(hashtable, socket->port) != NULL) {
-      err_exit(0, "key %d has already been in used!", socket->port);
-    }
+   _shm_socket_check_key(socket);
   }
 
-  socket->queue = new SHMQueue<shm_msg_t>(socket->port, 16);
+  socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
   socket->acceptQueue = new LockFreeQueue<shm_msg_t, DM_Allocator>(16);
   socket->clientSocketMap = new std::map<int, shm_socket_t *>;
   socket->status = SHM_CONN_LISTEN;
@@ -81,29 +110,30 @@
 */
 shm_socket_t *shm_accept(shm_socket_t *socket) {
   if (socket->socket_type != SHM_SOCKET_STREAM) {
-    err_exit(0, "can not invoke shm_accept method with a socket which is not a "
+    logger->error("can not invoke shm_accept method with a socket which is not a "
                 "SHM_SOCKET_STREAM socket");
+    exit(1);
   }
   hashtable_t *hashtable = mm_get_hashtable();
-  int client_port;
+  int client_key;
   shm_socket_t *client_socket;
   shm_msg_t src;
 
   if (socket->acceptQueue->pop(src)) {
 
     // print_msg("===accept:", src);
-    client_port = src.port;
+    client_key = src.key;
     // client_socket = (shm_socket_t *)malloc(sizeof(shm_socket_t));
     client_socket = shm_open_socket(socket->socket_type);
-    client_socket->port = socket->port;
+    client_socket->key = socket->key;
     // client_socket->queue= socket->queue;
     //鍒濆鍖栨秷鎭痲ueue
     client_socket->messageQueue =
         new LockFreeQueue<shm_msg_t, DM_Allocator>(16);
     //杩炴帴鍒板鏂筿ueue
-    client_socket->remoteQueue = _attach_remote_queue(client_port);
+    client_socket->remoteQueue = _attach_remote_queue(client_key);
 
-    socket->clientSocketMap->insert({client_port, client_socket});
+    socket->clientSocketMap->insert({client_key, client_socket});
 
     /*
 * shm_accept 鐢ㄦ埛鎵ц鐨勬柟娉�
@@ -112,7 +142,7 @@
     //鍙戦�乷pen_reply,鍥炲簲瀹㈡埛绔殑connect璇锋眰
     struct timespec timeout = {1, 0};
     shm_msg_t msg;
-    msg.port = socket->port;
+    msg.key = socket->key;
     msg.size = 0;
     msg.type = SHM_SOCKET_OPEN_REPLY;
 
@@ -120,7 +150,7 @@
       client_socket->status = SHM_CONN_ESTABLISHED;
       return client_socket;
     } else {
-      err_msg(0, "shm_accept: 鍙戦�乷pen_reply澶辫触");
+      logger->error( "shm_accept: 鍙戦�乷pen_reply澶辫触");
       return NULL;
     }
 
@@ -130,36 +160,37 @@
   return NULL;
 }
 
-int shm_connect(shm_socket_t *socket, int port) {
+
+int shm_connect(shm_socket_t *socket, int key) {
   if (socket->socket_type != SHM_SOCKET_STREAM) {
-    err_exit(0, "can not invoke shm_connect method with a socket which is not "
+    logger->error( "can not invoke shm_connect method with a socket which is not "
                 "a SHM_SOCKET_STREAM socket");
+    exit(1);
   }
   hashtable_t *hashtable = mm_get_hashtable();
-  if (hashtable_get(hashtable, port) == NULL) {
-    err_exit(0, "shm_connect锛歝onnect at port %d  failed!", port);
+  if (hashtable_get(hashtable, key) == NULL) {
+    logger->error("shm_connect锛歝onnect at key %d  failed!", key);
+    exit(1);
   }
 
-  if (socket->port == -1) {
-    socket->port = hashtable_alloc_key(hashtable);
+  if (socket->key == -1) {
+    socket->key = hashtable_alloc_key(hashtable);
   } else {
-
-    if (hashtable_get(hashtable, socket->port) != NULL) {
-      err_exit(0, "key %d has already been in used!", socket->port);
-    }
+    _shm_socket_check_key(socket);
   }
 
-  socket->queue = new SHMQueue<shm_msg_t>(socket->port, 16);
+  socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
 
-  if ((socket->remoteQueue = _attach_remote_queue(port)) == NULL) {
-    err_exit(0, "connect to %d failted", port);
+  if ((socket->remoteQueue = _attach_remote_queue(key)) == NULL) {
+    logger->error("connect to %d failted", key);
+    exit(1);
   }
   socket->messageQueue = new LockFreeQueue<shm_msg_t, DM_Allocator>(16);
 
   //鍙戦�乷pen璇锋眰
   struct timespec timeout = {1, 0};
   shm_msg_t msg;
-  msg.port = socket->port;
+  msg.key = socket->key;
   msg.size = 0;
   msg.type = SHM_SOCKET_OPEN;
   socket->remoteQueue->push_timeout(msg, &timeout);
@@ -172,11 +203,13 @@
       pthread_create(&(socket->dispatch_thread), NULL, _client_run_msg_rev,
                      (void *)socket);
     } else {
-      err_exit(0, "shm_connect: 涓嶅尮閰嶇殑搴旂瓟淇℃伅!");
+      logger->error( "shm_connect: 涓嶅尮閰嶇殑搴旂瓟淇℃伅!");
+      exit(1);
     }
 
   } else {
-    err_exit(0, "connect failted!");
+    logger->error( "connect failted!");
+    exit(1);
   }
 
   return 0;
@@ -184,8 +217,9 @@
 
 int shm_send(shm_socket_t *socket, const void *buf, const int size) {
   if (socket->socket_type != SHM_SOCKET_STREAM) {
-    err_exit(0, "can not invoke shm_send method with a socket which is not a "
+    logger->error("shm_socket.shm_send: can not invoke shm_send method with a socket which is not a "
                 "SHM_SOCKET_STREAM socket");
+    exit(1);
   }
   // hashtable_t *hashtable = mm_get_hashtable();
   // if(socket->remoteQueue == NULL) {
@@ -194,7 +228,7 @@
   // }
   shm_msg_t dest;
   dest.type = SHM_COMMON_MSG;
-  dest.port = socket->port;
+  dest.key = socket->key;
   dest.size = size;
   dest.buf = mm_malloc(size);
   memcpy(dest.buf, buf, size);
@@ -202,16 +236,17 @@
   if (socket->remoteQueue->push(dest)) {
     return 0;
   } else {
-    err_msg(errno, "connection has been closed!");
+    logger->error(errno, "connection has been closed!");
     return -1;
   }
 }
 
 int shm_recv(shm_socket_t *socket, void **buf, int *size) {
   if (socket->socket_type != SHM_SOCKET_STREAM) {
-    err_exit(0, "can not invoke shm_recv method in a %d type socket  which is "
+    logger->error( "shm_socket.shm_recv: can not invoke shm_recv method in a %d type socket  which is "
                 "not a SHM_SOCKET_STREAM socket ",
              socket->socket_type);
+    exit(1);
   }
   shm_msg_t src;
 
@@ -227,48 +262,54 @@
   }
 }
 
+
 // 鐭繛鎺ユ柟寮忓彂閫�
 int shm_sendto(shm_socket_t *socket, const void *buf, const int size,
-               const int port, const struct timespec *timeout) {
+               const int key, const struct timespec *timeout, const int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
-    err_exit(0, "Can't invoke shm_sendto method in a %d type socket  which is "
+    logger->error( "shm_socket.shm_sendto: Can't invoke shm_sendto method in a %d type socket  which is "
                 "not a SHM_SOCKET_DGRAM socket ",
              socket->socket_type);
+    exit(0);
   }
   hashtable_t *hashtable = mm_get_hashtable();
 
+  SemUtil::dec(socket->mutex);
   if (socket->queue == NULL) {
-    if (socket->port == -1) {
-      socket->port = hashtable_alloc_key(hashtable);
+    if (socket->key == -1) {
+      socket->key = hashtable_alloc_key(hashtable);
     } else {
 
-      if (hashtable_get(hashtable, socket->port) != NULL) {
-        err_exit(0, "key %d has already been in used!", socket->port);
-      }
+     _shm_socket_check_key(socket);
     }
 
-    socket->queue = new SHMQueue<shm_msg_t>(socket->port, 16);
+    socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
   }
-  if (port == socket->port) {
-    err_msg(0, "can not send to your self!");
+  SemUtil::inc(socket->mutex);
+  
+  if (key == socket->key) {
+    logger->error( "can not send to your self!");
     return -1;
+  }
+
+  SHMQueue<shm_msg_t> *remoteQueue;
+  if ((remoteQueue = _attach_remote_queue(key)) == NULL) {
+  	logger->error( "shm_sendto failed, the other end has been closed, or has not been opened!");
+    return SHM_SOCKET_ECONNFAILED;
   }
 
   shm_msg_t dest;
   dest.type = SHM_COMMON_MSG;
-  dest.port = socket->port;
+  dest.key = socket->key;
   dest.size = size;
   dest.buf = mm_malloc(size);
   memcpy(dest.buf, buf, size);
 
-  SHMQueue<shm_msg_t> *remoteQueue;
-  if ((remoteQueue = _attach_remote_queue(port)) == NULL) {
-  	err_msg(0, "shm_sendto failed, then other end has been closed!");
-    return -1;
-  }
   // printf("shm_sendto push before\n");
   bool rv;
-  if(timeout != NULL) {
+  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);
@@ -280,40 +321,51 @@
     return 0;
   } else {
     delete remoteQueue;
-    err_msg(errno, "sendto port %d failed!", port);
+    mm_free(dest.buf);
+    logger->error(errno, "sendto key %d failed!", key);
     return -1;
   }
 }
 
 // 鐭繛鎺ユ柟寮忔帴鍙�
-int shm_recvfrom(shm_socket_t *socket, void **buf, int *size, int *port) {
+int shm_recvfrom(shm_socket_t *socket, void **buf, int *size, int *key,  struct timespec *timeout,  int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
-    err_exit(0, "Can't invoke shm_recvfrom method in a %d type socket  which "
+    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);
+    exit(1);
   }
   hashtable_t *hashtable = mm_get_hashtable();
+  SemUtil::dec(socket->mutex);
   if (socket->queue == NULL) {
-    if (socket->port == -1) {
-      socket->port = hashtable_alloc_key(hashtable);
+    if (socket->key == -1) {
+      socket->key = hashtable_alloc_key(hashtable);
     } else {
 
-      if (hashtable_get(hashtable, socket->port) != NULL) {
-        err_exit(0, "key %d has already been in used!", socket->port);
-      }
+      _shm_socket_check_key(socket);
     }
 
-    socket->queue = new SHMQueue<shm_msg_t>(socket->port, 16);
+    socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
   }
+  SemUtil::inc(socket->mutex);
 
   shm_msg_t src;
   // printf("shm_recvfrom pop before\n");
-  if (socket->queue->pop(src)) {
+  bool rv;
+   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);
+  }
+
+  if (rv) {
     void *_buf = malloc(src.size);
     memcpy(_buf, src.buf, src.size);
     *buf = _buf;
     *size = src.size;
-    *port = src.port;
+    *key = src.key;
     mm_free(src.buf);
     // printf("shm_recvfrom pop after\n");
     return 0;
@@ -323,43 +375,72 @@
 }
 
 int shm_sendandrecv(shm_socket_t *socket, const void *send_buf,
-                    const int send_size, const int send_port, void **recv_buf,
-                    int *recv_size) {
+                    const int send_size, const int send_key, void **recv_buf,
+                    int *recv_size,  struct timespec *timeout,  int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
-    err_exit(0, "Can't invoke shm_sendandrecv method in a %d type socket  "
+    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);
   }
-  int recv_port;
+  int recv_key;
   int rv;
 
   shm_socket_t *tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
-  if (shm_sendto(tmp_socket, send_buf, send_size, send_port) == 0) {
-    rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_port);
+  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;
+  } else {
     shm_close_socket(tmp_socket);
     return rv;
   }
   return -1;
 }
 
+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) {
+  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 ",
+             socket->socket_type);
+    exit(1);
+  }
+  int recv_key;
+  int rv;
+
+ 
+  if ((rv = shm_sendto(socket, send_buf, send_size, send_key, timeout, flags)) == 0) {
+    rv = shm_recvfrom(socket, recv_buf, recv_size, &recv_key, timeout, flags);
+    return rv;
+  } else {
+    return rv;
+  }
+  return -1;
+}
+
+// ============================================================================================================
+
 /**
  * 缁戝畾key鍒伴槦鍒楋紝浣嗘槸骞朵笉浼氬垱寤洪槦鍒椼�傚鏋滄病鏈夊搴旀寚瀹歬ey鐨勯槦鍒楁彁绀洪敊璇苟閫�鍑�
  */
-SHMQueue<shm_msg_t> *_attach_remote_queue(int port) {
+SHMQueue<shm_msg_t> *_attach_remote_queue(int key) {
+
   hashtable_t *hashtable = mm_get_hashtable();
-  if (hashtable_get(hashtable, port) == NULL) {
-    err_msg(0, "_remote_queue_attach锛歝onnet at port %d  failed!", port);
+  if (hashtable_get(hashtable, key) == NULL) {
+    logger->error("shm_socket._remote_queue_attach锛歝onnet at key %d  failed!", key);
     return NULL;
   }
 
-  SHMQueue<shm_msg_t> *queue = new SHMQueue<shm_msg_t>(port, 0);
+  SHMQueue<shm_msg_t> *queue = new SHMQueue<shm_msg_t>(key, 0);
   return queue;
 }
 
-void _server_close_conn_to_client(shm_socket_t *socket, int port) {
+void _server_close_conn_to_client(shm_socket_t *socket, int key) {
   shm_socket_t *client_socket;
   std::map<int, shm_socket_t *>::iterator iter =
-      socket->clientSocketMap->find(port);
+      socket->clientSocketMap->find(key);
   if (iter != socket->clientSocketMap->end()) {
     client_socket = iter->second;
     free((void *)client_socket);
@@ -385,11 +466,11 @@
       socket->acceptQueue->push_timeout(src, &timeout);
       break;
     case SHM_SOCKET_CLOSE:
-      _server_close_conn_to_client(socket, src.port);
+      _server_close_conn_to_client(socket, src.key);
       break;
     case SHM_COMMON_MSG:
 
-      iter = socket->clientSocketMap->find(src.port);
+      iter = socket->clientSocketMap->find(src.key);
       if (iter != socket->clientSocketMap->end()) {
         client_socket = iter->second;
         // print_msg("_server_run_msg_rev push before", src);
@@ -400,7 +481,7 @@
       break;
 
     default:
-      err_msg(0, "socket.__shm_rev__: undefined message type.");
+       logger->error("shm_socket._server_run_msg_rev: undefined message type.");
     }
   }
 
@@ -431,7 +512,7 @@
       socket->messageQueue->push_timeout(src, &timeout);
       break;
     default:
-      err_msg(0, "socket.__shm_rev__: undefined message type.");
+       logger->error( "shm_socket._client_run_msg_rev: undefined message type.");
     }
   }
 
@@ -444,7 +525,7 @@
   struct timespec timeout = {1, 0};
   shm_msg_t close_msg;
 
-  close_msg.port = socket->port;
+  close_msg.key = socket->key;
   close_msg.size = 0;
   close_msg.type = SHM_SOCKET_CLOSE;
   if (notifyRemote && socket->remoteQueue != NULL) {
@@ -491,7 +572,7 @@
   if (socket->dispatch_thread != 0)
     pthread_cancel(socket->dispatch_thread);
 
-  free(socket);
+  
   return 0;
 
 }
@@ -501,7 +582,7 @@
 		delete socket->queue;
 		socket->queue = NULL;
 	}
-	free(socket);
+	
 	return 0;
 }
 

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