Fixed msgQReceive() return value error.

target/h/msgQLibCommon.h

@@ -69,7 +69,7 @@ MSG_Q_ID        msgQCreate(int maxMsgs, int maxMsgLength, int options);
 STATUS          msgQDelete(MSG_Q_ID msgQId);
 STATUS          msgQSend(MSG_Q_ID msgQId, char *buffer, UINT nBytes,
                          int timeout, int priority);
-int             msgQReceive(MSG_Q_ID msgQId, char *buffer, UINT maxNBytes,
+ssize_t         msgQReceive(MSG_Q_ID msgQId, char *buffer, UINT maxNBytes,
                             int timeout);
 STATUS          msgQInfoGet(MSG_Q_ID msgQId, MSG_Q_INFO *pInfo);
 int             msgQNumMsgs(MSG_Q_ID msgQId);

target/src/msgQLib.c

@@ -176,7 +176,7 @@ STATUS  msgQSend (MSG_Q_ID msgQId, char *buffer, UINT nBytes,
 /*
  * recv a msg from msgqueue
  */
-int  msgQReceive (MSG_Q_ID msgQId, char *buffer, UINT maxNBytes, int timeout)
+ssize_t  msgQReceive (MSG_Q_ID msgQId, char *buffer, UINT maxNBytes, int timeout)
 {
     ULONG   ulError;
     size_t  stLen;
@@ -194,7 +194,7 @@ int  msgQReceive (MSG_Q_ID msgQId, char *buffer, UINT maxNBytes, int timeout)
         return  (ERROR);
 
     } else {
-        return  (OK);
+        return  ((ssize_t)stLen);
     }
 }