From 8284df1d749fa7adb334fe4f43da77bfc9c05a71 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期四, 24 十二月 2020 11:35:02 +0800
Subject: [PATCH] add error message method

---
 src/socket/shm_socket.c |   83 +++++++++++++++++++++++++++++++++--------
 1 files changed, 66 insertions(+), 17 deletions(-)

diff --git a/src/socket/shm_socket.c b/src/socket/shm_socket.c
index 9581b69..f53b520 100644
--- a/src/socket/shm_socket.c
+++ b/src/socket/shm_socket.c
@@ -2,14 +2,18 @@
 #include "hashtable.h"
 #include "logger_factory.h"
 #include <map>
+#include "bus_error.h"
 
 static Logger *logger = LoggerFactory::getLogger();
 
 
 
-void print_msg(char *head, shm_msg_t &msg) {
+static void print_msg(char *head, shm_msg_t &msg) {
   // err_msg(0, "%s: key=%d, type=%d\n", head, msg.key, msg.type);
 }
+
+static pthread_once_t _once_ = PTHREAD_ONCE_INIT;
+static pthread_key_t _tmp_recv_socket_key_;
 
 static void *_server_run_msg_rev(void *_socket);
 
@@ -18,6 +22,9 @@
 static int _shm_close_dgram_socket(shm_socket_t *socket);
 
 static int _shm_close_stream_socket(shm_socket_t *socket, bool notifyRemote);
+
+static void _destrory_tmp_recv_socket_(void *tmp_socket);
+static void _create_tmp_recv_socket_key(void);
 
 // 妫�鏌ey鏄惁宸茬粡琚娇鐢紝鏄繑鍥�0, 鍚﹁繑鍥�1
 static inline int  _shm_socket_check_key(shm_socket_t *socket) {
@@ -38,6 +45,8 @@
 }
 
 shm_socket_t *shm_open_socket(shm_socket_type_t socket_type) {
+
+  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;
@@ -45,12 +54,14 @@
   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:
       ret =  _shm_close_stream_socket(socket, true);
@@ -61,10 +72,18 @@
     default:
       break;
   }
-  SemUtil::remove(socket->mutex);
   free(socket);
+  SemUtil::remove(socket->mutex);
+  logger->debug("shm_close_socket\n");
   return ret;
 }
+
+// int shm_close_socket(shm_socket_t *socket) {
+  
+//   // _destrory_tmp_recv_socket_((shm_socket_t *)pthread_getspecific(_tmp_recv_socket_key_));
+ 
+//   return shm_close_socket(socket);;
+// }
 
 int shm_socket_bind(shm_socket_t *socket, int key) {
   socket->key = key;
@@ -305,8 +324,9 @@
 
   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;
+    bus_errno = EBUS_CLOSED;
+    logger->error("sendto key %d failed, %s", key, bus_strerror(bus_errno));
+    return EBUS_CLOSED;
   }
 
   shm_msg_t dest;
@@ -333,8 +353,16 @@
   } else {
     delete remoteQueue;
     mm_free(dest.buf);
-    logger->error(errno, "sendto key %d failed!", key);
-    return -1;
+    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;
+    }
+   
+   
   }
 }
 
@@ -374,11 +402,18 @@
   }
 
   if (rv) {
-    void *_buf = malloc(src.size);
-    memcpy(_buf, src.buf, src.size);
-    *buf = _buf;
-    *size = src.size;
-    *key = src.key;
+    if(buf != NULL) {
+      void *_buf = malloc(src.size);
+      memcpy(_buf, src.buf, src.size);
+      *buf = _buf; 
+    }
+   
+    if(size != NULL)
+      *size = src.size;
+
+    if(key != NULL)
+      *key = src.key;
+
     mm_free(src.buf);
     // printf("shm_recvfrom pop after\n");
     return 0;
@@ -387,14 +422,21 @@
   }
 }
 
-static pthread_once_t _once_ = PTHREAD_ONCE_INIT;
-static pthread_key_t _tmp_recv_socket_key_;
 
  /* Free thread-specific data buffer */
 static void _destrory_tmp_recv_socket_(void *tmp_socket)
 {
+  int rv;
+  if(tmp_socket == NULL)
+    return;
+
   logger->debug("%d destroy tmp socket\n", pthread_self()); 
   shm_close_socket((shm_socket_t *)tmp_socket);
+  rv =  pthread_setspecific(_tmp_recv_socket_key_, NULL);
+  if ( rv != 0) {
+    logger->error(rv, "shm_sendandrecv : pthread_setspecific");
+    exit(1);
+  }
 }
 
 /* One-time key creation function */
@@ -405,6 +447,7 @@
   /* Allocate a unique thread-specific data key and save the address
      of the destructor for thread-specific data buffers */
   s = pthread_key_create(&_tmp_recv_socket_key_, _destrory_tmp_recv_socket_);
+  //s = pthread_key_create(&_tmp_recv_socket_key_, NULL);
   if (s != 0) {
      logger->error(s, "pthread_key_create");
      abort(); /* dump core and terminate */ 
@@ -414,7 +457,7 @@
 
 
 
-int shm_sendandrecv(shm_socket_t *socket, const void *send_buf,
+int shm_sendandrecv_safe(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_key;
@@ -444,8 +487,8 @@
     logger->debug("%d create tmp socket\n", pthread_self() );
     tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
 
-    rv = pthread_setspecific(_tmp_recv_socket_key_, tmp_socket);
-    if (rv != 0) {
+    rv =  pthread_setspecific(_tmp_recv_socket_key_, tmp_socket);
+    if ( rv != 0) {
       logger->error(rv, "shm_sendandrecv : pthread_setspecific");
       exit(1);
     }
@@ -484,6 +527,12 @@
   return -1;
 }
 
+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_unsafe(socket, send_buf, send_size, send_key,recv_buf, recv_size, timeout,  flags);
+}
+
 // ============================================================================================================
 
 /**
@@ -493,7 +542,7 @@
 
   hashtable_t *hashtable = mm_get_hashtable();
   if (hashtable_get(hashtable, key) == NULL) {
-    logger->error("shm_socket._remote_queue_attach锛歝onnet at key %d  failed!", key);
+    //logger->error("shm_socket._remote_queue_attach锛歝onnet at key %d  failed!", key);
     return NULL;
   }
 

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