diff --git a/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp b/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp
index 085f3ef12..97a785959 100644
--- a/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp
+++ b/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp
@@ -237,7 +237,20 @@ char* LibCommErrMessage(void) {
     return errBuf;
 }
 
-
+/*
+function name: LibCommClientSSLPasswd
+description: As a client, this function is used to detect whether there is a file with a valid key in the specified
+				   directory and whether there is permission to operate it. If so, the password will be decrypted by 
+                   using the file.
+arguments: The first parameter is a pointer of type (SSL *).
+				   The second parameter is used to obtain the absolute path of the certificate file.
+				   The third parameter represents the user name.
+				   The fourth parameter is a pointer of type (libcommconn *), whose member variable contains the ciphertext to be decrypted.
+return value: If the path is empty or does not have operation permission to the directory where the certificate file is located, a non-1 value is returned; otherwise, 0 is returned.
+note: none
+date: 2022/8/12
+contact tel: 18720816902
+*/
 int LibCommClientSSLPasswd(SSL* pstContext, const char * path, const char * userName, LibCommConn * conn) {
     char* CertFilesDir = NULL;
     char CertFilesPath[MAXPATH] = {0};
@@ -261,8 +274,8 @@ int LibCommClientSSLPasswd(SSL* pstContext, const char * path, const char * user
 
     /*check whether the cipher and rand files begins with userName exist.
     if exist, decrypt it.
-    if not,decrypt the default cipher and rand files begins with client%.
-    Because,for every client user mayown certification and private key*/
+    if not,decrypt the default cipher and rand files begins with client.
+    Because,for every client user may own certification and private key*/
     if (NULL == userName) {
         retval = LibCommClientCheckPermissionCipherFile(CertFilesDir, conn, NULL);
         if (retval != 1)
diff --git a/src/gausskernel/cbb/communication/libcomm_utils/libcomm_lqueue.cpp b/src/gausskernel/cbb/communication/libcomm_utils/libcomm_lqueue.cpp
index 56661b33d..eff8ca97d 100644
--- a/src/gausskernel/cbb/communication/libcomm_utils/libcomm_lqueue.cpp
+++ b/src/gausskernel/cbb/communication/libcomm_utils/libcomm_lqueue.cpp
@@ -33,6 +33,16 @@ inline int mc_lqueue_item_size(struct mc_lqueue_item* q_item)
     return q_item->element.data->iov_len;
 }
 
+/*
+function name: mc_lqueue_add
+description: Add an element to a specific queue.
+arguments: The first parameter is a pointer of type (mc_lqueue *), whose member variable list points to the target queue.
+				   The second parameter points to the element to be added to the queue.
+return value: Returns 1 if the element is successfully added to the queue, otherwise returns - 1.
+note: none
+date: 2022/8/13
+contact tel: 18720816902
+*/
 int mc_lqueue_add(struct mc_lqueue* q, struct mc_lqueue_item* q_item)
 {
     if (q == NULL || q_item == NULL) {
@@ -60,6 +70,17 @@ int mc_lqueue_add(struct mc_lqueue* q, struct mc_lqueue_item* q_item)
     return 1;
 }
 
+/*
+function name: mc_lqueue_remove
+description: Remove the head element in a specific queue.
+arguments: The first parameter is a pointer of type (mc_lqueue *), whose member variable list points to the target queue.
+				   The second parameter points to the queue head element used to store the removal from the queue.
+return value: Return NULL if an error occurs during the removal of the queue head element, otherwise a pointer to
+					 the successfully removed queue head element is returned.
+note: none
+date: 2022/8/13
+contact tel: 18720816902
+*/
 struct mc_lqueue_item* mc_lqueue_remove(struct mc_lqueue* q, struct mc_lqueue_item* q_item)
 {
     if (q == NULL) {
@@ -89,6 +110,18 @@ struct mc_lqueue_item* mc_lqueue_remove(struct mc_lqueue* q, struct mc_lqueue_it
     return q_item;
 }
 
+/*
+function name: mc_lqueue_init
+description: This function is used to open an area in the memory area. One part of the area is used to store a queue with
+				    a certain specification, and the other part is used to store the information of the queue, such as the specification
+                    and the number of elements. Finally, a pointer to the area is returned.
+arguments: This parameter specifies that the maximum number of elements that the queue can hold is size, but this does 
+				   not mean that the size of the queue is so large at the beginning.
+return value: If the function runs successfully, it returns a pointer to the opened memory area; otherwise, it returns NULL.
+note: none
+date: 2022/8/13
+contact tel: 18720816902
+*/
 struct mc_lqueue* mc_lqueue_init(unsigned long size)
 {
     if (size == 0) {