feat(agb02/control-box): auto-reconnect and white_button cycle

machines/agb02/agb/agb.cpp

@@ -75,24 +75,6 @@ int main(const int argc, char const* const* const argv) {
   // let the settings apply
   std::this_thread::sleep_for(poll_period);
 
-  /// init server communication ///
-
-  int socket_file_desc = socket(AF_INET, SOCK_STREAM, 0);
-  {
-    sockaddr_in socket_addr = {
-      .sin_family = AF_INET,
-      .sin_port = htons(1235),
-      .sin_addr = { .s_addr = inet_addr("10.10.10.1") }
-    };
-    int con_ret = connect(socket_file_desc,
-                          reinterpret_cast<const sockaddr*>(&socket_addr),
-                          sizeof(socket_addr));
-    if(con_ret < 0) {
-      std::cerr << "Failed to open tcp socket." << std::endl;
-      return 1;
-    }
-  }
-
   /// internal state and buffers ///
 
   std::chrono::time_point now = std::chrono::system_clock::now();
@@ -119,6 +101,7 @@ int main(const int argc, char const* const* const argv) {
   uint8_t decoder_pos = 0; //TODO: init from server
   uint8_t decoder_realpos = read_decoder_realpos(line_reader);
 
+  uint8_t white_state = 0;
   bool white_pressed = false;
   bool black_pressed = false;
 
@@ -126,6 +109,26 @@ int main(const int argc, char const* const* const argv) {
   std::chrono::time_point last_send = now;
   std::string postData;
 
+  /// init server communication ///
+
+  int socket_file_desc;
+connection:
+  socket_file_desc = socket(AF_INET, SOCK_STREAM, 0);
+  {
+    sockaddr_in socket_addr = {
+      .sin_family = AF_INET,
+      .sin_port = htons(1235),
+      .sin_addr = { .s_addr = inet_addr("10.10.10.1") }
+    };
+    while (connect(socket_file_desc,
+                   reinterpret_cast<const sockaddr*>(&socket_addr),
+                   sizeof(socket_addr)) < 0) {
+      std::cerr << "Failed to open tcp socket, retrying..." << std::endl;
+      std::this_thread::sleep_for(retry_timeout);
+    }
+    std::cout << "Connected." << std::endl;
+  }
+
   for(;;){
     std::this_thread::sleep_for(poll_period);
     now = std::chrono::system_clock::now();
@@ -153,8 +156,10 @@ int main(const int argc, char const* const* const argv) {
     black_pressed = pressed;
 
     pressed = bool(line_reader.get_value(white_button));
-    if(pressed ^ white_pressed)
+    if(pressed && !white_pressed){
       has_changed = true;
+      white_state = (white_state + 1)%9;
+    }
     white_pressed = pressed;
 
     /// decoder ///
@@ -184,20 +189,22 @@ int main(const int argc, char const* const* const argv) {
           "\"pan\": {},"
           "\"tilt\": {},"
           "\"focus\": {},"
-          "\"whiteButton\": {},"
+          "\"white_button\": {},"
-          "\"blackButton\": {}"
+          "\"black_button\": {}"
         "}}\n",
         uint8_t(spot_pos.first),
         uint8_t(spot_pos.second),
         int(decoder_pos),
-        white_pressed,
+        white_state,
         black_pressed
       );
 
       int wrote = write(socket_file_desc, postData.data(), postData.size());
       if(wrote < postData.size()){
-        std::cerr << "Failed to send data, retrying in " << retry_timeout << "." << std::endl;
+        std::cerr << "Failed to send data, reconnecting..." << std::endl;
-        last_send = now + retry_timeout - server_ratelimit;
+        close(socket_file_desc);
+        std::this_thread::sleep_for(retry_timeout);
+        goto connection;
       } else {
         has_changed = false;
         last_send = now;