got rid of keep_running external ref

DVAPDongle.cpp

@@ -24,11 +24,8 @@
 #include <termios.h>
 #include <time.h>
 #include <sys/file.h>
-#include <atomic>
 #include "DVAPDongle.h"
 
- extern std::atomic<bool> keep_running;
-
 CDVAPDongle::CDVAPDongle() : MAX_REPL_CNT(20u)
 {
 }
@@ -135,7 +132,8 @@ REPLY_TYPE CDVAPDongle::GetReply(SDVAP_REGISTER &dr)
 
 	uint16_t len = dr.header & 0x1fff;
 	if (len > 50) {
-		syncit();
+		if (syncit())
+			return RT_ERR;
 		return RT_TIMEOUT;
 	}
 
@@ -183,15 +181,13 @@ REPLY_TYPE CDVAPDongle::GetReply(SDVAP_REGISTER &dr)
 	else if (0x5u== dr.header && 0x80u==dr.param.control)
 		return RT_SQL;
 	else {
-		syncit();
+		if (syncit())
+			return RT_ERR;
 		return RT_TIMEOUT;
 	}
-
-	/* It should never get here */
-	return RT_TIMEOUT;
 }
 
-void CDVAPDongle::syncit()
+bool CDVAPDongle::syncit()
 {
 	unsigned char data[7];
 	struct timeval tv;
@@ -212,9 +208,8 @@ void CDVAPDongle::syncit()
 		if (n <= 0) {
 			cnt ++;
 			if (cnt > 100) {
-				traceit("dvap is not responding,...stopping\n");
-				keep_running = false;
-				return;
+				traceit("syncit() uncessful...stopping\n");
+				return true;
 			}
 		} else {
 			unsigned char c;
@@ -233,7 +228,7 @@ void CDVAPDongle::syncit()
 		}
 	}
 	traceit("Stopping syncing dvap\n");
-	return;
+	return false;
 }
 
 bool CDVAPDongle::get_ser(char *dvp, char *dvap_serial_number)

DVAPDongle.h

@@ -16,6 +16,8 @@
  *   along with this program; if not, write to the Free Software
  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
+
+ #include <stdint.h>
  
 enum REPLY_TYPE {
 	RT_TIMEOUT,
@@ -104,7 +106,7 @@ class CDVAPDongle
 		bool OpenSerial(char *device);
 		int read_from_dvp(void* buf, unsigned int len);
 		int write_to_dvp(const void* buf, const unsigned int len);
-		void syncit();
+		bool syncit();
 		bool get_ser(char *dvp, char *dvap_serial_number);
 		bool get_name();
 		bool get_fw();