spend less time petting dogs

src/main.c

@@ -392,7 +392,7 @@ int main () {
    * client connection.
    */
   while (true) {
-    wdt_reset();
+    if (client_count == 0) { wdt_reset(); }
 
     // Attempt to accept a new connection
     for (int i = 0; i < MAX_PLAYERS; i ++) {
@@ -413,7 +413,7 @@ int main () {
     if (client_index == MAX_PLAYERS) client_index = 0;
     if (clients[client_index] == -1) continue;
 
-    // Handle infrequent periodic events every 10 seconds
+    // Handle infrequent periodic events every few seconds
     clock_gettime(CLOCK_REALTIME, &time_now);
     time_t seconds_since_update = time_now.tv_sec - keepalive_last.tv_sec;
     if (seconds_since_update > 10) {
@@ -467,6 +467,8 @@ int main () {
       disconnectClient(&clients[client_index], 4);
       continue;
     }
+    // Reset watchdog and yield between packets
+    wdt_reset();
 
   }
 

src/tools.c

@@ -63,12 +63,12 @@ ssize_t recv_all (int client_fd, void *buf, size_t n, uint8_t require_first) {
   return total; // got exactly n bytes
 }
 
-ssize_t send_all (int fd, const void *buf, size_t len) {
+ssize_t send_all (int client_fd, const void *buf, size_t len) {
   const uint8_t *p = (const uint8_t *)buf;
   size_t sent = 0;
 
   while (sent < len) {
-    ssize_t n = send(fd, p + sent, len - sent, MSG_NOSIGNAL);
+    ssize_t n = send(client_fd, p + sent, len - sent, MSG_NOSIGNAL);
     if (n > 0) {
       sent += (size_t)n;
       continue;