From b386f0c5d35994a54e95d5fe1c4bcbfd1cdea59c Mon Sep 17 00:00:00 2001
From: Fu Juntang <StrongTiger_001@163.com>
Date: 星期五, 03 九月 2021 17:43:11 +0800
Subject: [PATCH] Supplementary for the fix of the lock removal.

---
 src/bh_api.cpp |  148 +++++++++++++++++++++++--------------------------
 1 files changed, 70 insertions(+), 78 deletions(-)

diff --git a/src/bh_api.cpp b/src/bh_api.cpp
index 5310992..e36daee 100644
--- a/src/bh_api.cpp
+++ b/src/bh_api.cpp
@@ -1400,7 +1400,7 @@
 
       if (val > 0) {
         memset(&node, 0x00, sizeof(node));
-
+        
         len = strlen(buf_temp) + 1;
 #if defined(PRO_DE_SERIALIZE)
         len += strlen(_input1.data);
@@ -1467,11 +1467,11 @@
           rv = EBUS_TIMEOUT; 
         }
         
-        free(topics_buf);
-
       } else {
         rv = EBUS_RES_UNSUPPORT; 
       }
+
+      free(topics_buf);
     }
 
     memset(errString, 0x00, sizeof(errString));
@@ -1547,95 +1547,87 @@
     return false;
   }
 
+  if (timeout_ms > 0) {
+
+    sec = timeout_ms / 1000;
+    nsec = (timeout_ms - sec * 1000) * 1000 * 1000;
+
+    rv = net_mod_socket_recvfrom_timeout(gNetmod_socket, &buf, &size, &key, sec, nsec);
+
+  } else if (timeout_ms == 0) {
+
+    rv = net_mod_socket_recvfrom_nowait(gNetmod_socket, &buf, &size, &key);
+  
+  } else {
+
+    rv = net_mod_socket_recvfrom(gNetmod_socket, &buf, &size, &key);
+  }
+
   if (rv == 0) {
-    if (timeout_ms > 0) {
+    struct _ReadRequestReply
+    {
+      std::string proc_id;
+      std::string topic;
+      std::string data;
+      void *src;
+    } rrr;
 
-      sec = timeout_ms / 1000;
-      nsec = (timeout_ms - sec * 1000) * 1000 * 1000;
+    sprintf(buf_temp, "%d", key);
+    rrr.proc_id = buf_temp;
 
-      rv = net_mod_socket_recvfrom_timeout(gNetmod_socket, &buf, &size, &key, sec, nsec);
+    *proc_id_len = rrr.proc_id.size();
+    *proc_id = malloc(*proc_id_len);
+    memcpy(*proc_id, rrr.proc_id.data(), *proc_id_len);
 
-    } else if (timeout_ms == 0) {
-
-      rv = net_mod_socket_recvfrom_nowait(gNetmod_socket, &buf, &size, &key);
+    topics_buf = (char *)malloc(size + MIN_STR_LEN);
+    if (topics_buf == NULL) {
+      
+      rv = EBUS_NO_MEM;
+      memset(errString, 0x00, sizeof(errString));
+      strncpy(errString, bus_strerror(rv), sizeof(errString));
+      
+      logger->error("in BHReadRequest: Out of memory!\n");
+      
+      return false;
+    }
+    memset(topics_buf, 0x00, size + MIN_STR_LEN);
     
-    } else {
-
-      rv = net_mod_socket_recvfrom(gNetmod_socket, &buf, &size, &key);
+    len = strlen((char *)buf);
+    if (len > size) {
+      len = size;
+    }
+    strncpy(topics_buf, (char *)buf, len);
+    rrr.topic = topics_buf;
+    
+    if (len < size) {
+      strncpy(topics_buf + len + 1, (char *)buf + len + 1, size - len - 1);
     }
 
-    if (rv == 0) {
-      struct _ReadRequestReply
-      {
-        std::string proc_id;
-        std::string topic;
-        std::string data;
-        void *src;
-      } rrr;
-
-      sprintf(buf_temp, "%d", key);
-      rrr.proc_id = buf_temp;
-
-      *proc_id_len = rrr.proc_id.size();
-      *proc_id = malloc(*proc_id_len);
-      memcpy(*proc_id, rrr.proc_id.data(), *proc_id_len);
-
-      topics_buf = (char *)malloc(size + MIN_STR_LEN);
-      if (topics_buf == NULL) {
-        
-        rv = EBUS_NO_MEM;
-        memset(errString, 0x00, sizeof(errString));
-        strncpy(errString, bus_strerror(rv), sizeof(errString));
-        
-        logger->error("in BHReadRequest: Out of memory!\n");
-        
-        return false;
-      }
-      memset(topics_buf, 0x00, size + MIN_STR_LEN);
-      
-      len = strlen((char *)buf);
-      if (len > size) {
-        len = size;
-      }
-      strncpy(topics_buf, (char *)buf, len);
-      rrr.topic = topics_buf;
-      
-      if (len < size) {
-        strncpy(topics_buf + len + 1, (char *)buf + len + 1, size - len - 1);
-      }
-
-      rrr.data = topics_buf + len + 1;
-      
-      free(topics_buf);
+    rrr.data = topics_buf + len + 1;
+    
+    free(topics_buf);
 
 #if defined(PRO_DE_SERIALIZE)
-      ::bhome_msg::MsgRequestTopic mrt;
-      mrt.set_topic(rrr.topic);
-      mrt.set_data(rrr.data.data());
-      *request_len = mrt.ByteSizeLong();
-      *request = malloc(*request_len);
-      mrt.SerializePartialToArray(*request,*request_len);
+    ::bhome_msg::MsgRequestTopic mrt;
+    mrt.set_topic(rrr.topic);
+    mrt.set_data(rrr.data.data());
+    *request_len = mrt.ByteSizeLong();
+    *request = malloc(*request_len);
+    mrt.SerializePartialToArray(*request,*request_len);
 #else 
-      *request = buf;
-      *request_len = size;
+    *request = buf;
+    *request_len = size;
 #endif 
 
-      free(buf);
+    free(buf);
 
-      buf = malloc(sizeof(int));
-      *(int *)buf = key;
-      *src = buf;
-    }
-
-    memset(errString, 0x00, sizeof(errString));
-    strncpy(errString, bus_strerror(rv), sizeof(errString));
-    
-  } else {
- 
-    rv = EBUS_RES_BUSY;
-    memset(errString, 0x00, sizeof(errString));
-    strncpy(errString, bus_strerror(rv), sizeof(errString));
+    buf = malloc(sizeof(int));
+    *(int *)buf = key;
+    *src = buf;
   }
+
+  memset(errString, 0x00, sizeof(errString));
+  strncpy(errString, bus_strerror(rv), sizeof(errString));
 	
   if (rv == 0)
     return true;

--
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