[feature][T8TSK-4] Optimize the network module, provide state buffer variables 4, add brief comment

Change-Id: I91866e5177dc1df32112761b516780594c5365db
diff --git a/lib/liblynq-network/lynq_network.cpp b/lib/liblynq-network/lynq_network.cpp
index 77762ae..82a02c5 100755
--- a/lib/liblynq-network/lynq_network.cpp
+++ b/lib/liblynq-network/lynq_network.cpp
@@ -156,6 +156,14 @@
     return 0;

 }

 

+/**@brief wait response with expected token and write msg to parcel in some time

+* @param p [IN]: pointer the parcel

+* @param token [IN]: the expected token for the response msg

+* @param time_out [IN]: timeout.

+* @return

+*  0:success

+*  other:failure

+*/

 const int waitResponse(Parcel*& p, int token,int time_out)

 {

     int waitToken = token;

@@ -223,11 +231,21 @@
     }

 }

 

+/**@brief print solicied response msg's head information

+* @param head [IN]: head information

+* @return none

+*/

 void PrintHeader(lynq_resp_t& head)

 {

     LYINFLOG("resp_type=%d,token=%d,request=%d,slot_id=%d,error_code=%d",head.resp_type,head.token,head.request,head.slot_id,head.error);

 }

 

+/**@brief get solicied response msg's head

+* @param head [OUT]: head information

+* @return

+*  0:success

+*  other:failure

+*/

 int GetHeader(Parcel* &p, lynq_resp_t& head)

 {

     LYINFLOG("get header");

@@ -247,6 +265,17 @@
     }

 }

 

+/**@brief send msg to service and get response from service

+* @param request_id [IN]: request id

+* @param time_out [IN]: wait time uplimit

+* @param p [IN]: point to response msg's parcel

+* @param argc [IN]: how many parameters in parameter string

+* @param format [IN]: parameter string's format

+* @param ... [IN]: the specific parameter

+* @return

+*  0:success

+*  other:failure

+*/

 int lynq_get_common_request(int request_id, int time_out, Parcel*& p, int argc, const char* format,...)

 {

     lynq_client_t client;

@@ -306,6 +335,11 @@
     return;

 }

 

+/**@ a thread just for recv\buffer solicited msg's response and notice waiting thread

+* @param p [IN]: no meaning

+* @return

+* always null

+*/

 void *thread_rc_recv(void *p)

 {

     Parcel* rc_p;

@@ -328,22 +362,22 @@
                  LYERRLOG("%s recv len %d less %d",__func__, rc_len,sizeof(int)*2);

                  continue;

             } 

-			rc_p= new Parcel;

-			if(rc_p==NULL)

-			{

-			    null_cnt++;

-			    LYERRLOG("%s rc_p is NULL, cnt is %d",__func__, null_cnt);

+            rc_p= new Parcel;

+            if(rc_p==NULL)

+            {

+                null_cnt++;

+                LYERRLOG("%s rc_p is NULL, cnt is %d",__func__, null_cnt);

                 if(null_cnt>20)

                 {

                     goto rc_recv_end;

                 }

                 continue;

-			}

+            }

             else 

             {

                 null_cnt=0;

             }

-				

+                

             rc_p->setData((uint8_t *)rc_data,rc_len); // p.setData((uint8_t *) buffer, buflen);

             rc_p->setDataPosition(0);

             if(rc_p->dataAvail()>0)

@@ -367,11 +401,11 @@
                 BLOCK_RC_MSG_UNLOCK();

                 break;

             }

-			else

-			{

-			    LYERRLOG("%s rc_p data Avail %d not greater than 0",__func__, rc_p->dataAvail());

+            else

+            {

+                LYERRLOG("%s rc_p data Avail %d not greater than 0",__func__, rc_p->dataAvail());

                 delete rc_p;

-			}

+            }

         }

     }