lwip: Fixed count of udp iterations to reflect attempts

Author: geky

features/FEATURE_LWIP/TESTS/mbedmicro-net/udp_echo/main.cpp

@@ -81,15 +81,13 @@ int main() {
     SocketAddress udp_addr(ipbuf, port);
 
     int success = 0;
-    int i = 0;
-    while (success < ECHO_LOOPS) {
         prep_buffer(uuid, uuid_len, tx_buffer, sizeof(tx_buffer));
+    for (int i = 0; success < ECHO_LOOPS; i++) {
         const int ret = sock.sendto(udp_addr, tx_buffer, sizeof(tx_buffer));
         if (ret >= 0) {
             printf("[%02d] sent %d bytes - %.*s  \n", i, ret, ret, tx_buffer);
         } else {
             printf("[%02d] Network error %d\n", i, ret);
-            i++;
             continue;
         }
 
@@ -99,7 +97,6 @@ int main() {
             printf("[%02d] recv %d bytes - %.*s  \n", i, n, n, tx_buffer);
         } else {
             printf("[%02d] Network error %d\n", i, n);
-            i++;
             continue;
         }
 
@@ -109,7 +106,6 @@ int main() {
             success += 1;
 
             printf("[%02d] success #%d\n", i, success);
-            i++;
             continue;
         }
 

features/FEATURE_LWIP/TESTS/mbedmicro-net/udp_echo_parallel/main.cpp

@@ -86,9 +86,8 @@ class Echo {
 
         sock.set_timeout(MBED_CFG_UDP_CLIENT_ECHO_TIMEOUT);
 
-        int i = 0;
-        while (success < ECHO_LOOPS) {
             prep_buffer(id, uuid_buffer, uuid_len, tx_buffer, sizeof(tx_buffer));
+        for (int i = 0; success < ECHO_LOOPS; i++) {
             const int ret = sock.sendto(udp_addr, tx_buffer, sizeof(tx_buffer));
             if (ret >= 0) {
                 iomutex.lock();
@@ -98,7 +97,6 @@ class Echo {
                 iomutex.lock();
                 printf("[ID:%01d][%02d] Network error %d\n", id, i, ret);
                 iomutex.unlock();
-                i++;
                 continue;
             }
 
@@ -112,7 +110,6 @@ class Echo {
                 iomutex.lock();
                 printf("[ID:%01d][%02d] Network error %d\n", id, i, n);
                 iomutex.unlock();
-                i++;
                 continue;
             }
 
@@ -123,8 +120,6 @@ class Echo {
                 iomutex.lock();
                 printf("[ID:%01d][%02d] success #%d\n", id, i, success);
                 iomutex.unlock();
-
-                i++;
                 continue;
             }