Prefix control event constants by namespace

This will avoid conflicts with future device events.

app/src/control_event.c

@@ -25,9 +25,9 @@ control_event_serialize(const struct control_event *event, unsigned char *buf) {
         case CONTROL_EVENT_TYPE_TEXT: {
             // write length (2 bytes) + string (non nul-terminated)
             size_t len = strlen(event->text_event.text);
-            if (len > TEXT_MAX_LENGTH) {
+            if (len > CONTROL_EVENT_TEXT_MAX_LENGTH) {
                 // injecting a text takes time, so limit the text length
-                len = TEXT_MAX_LENGTH;
+                len = CONTROL_EVENT_TEXT_MAX_LENGTH;
             }
             buffer_write16be(&buf[1], (uint16_t) len);
             memcpy(&buf[3], event->text_event.text, len);

app/src/control_event.h

@@ -9,8 +9,8 @@
 #include "common.h"
 
 #define CONTROL_EVENT_QUEUE_SIZE 64
-#define TEXT_MAX_LENGTH 300
-#define SERIALIZED_EVENT_MAX_SIZE (3 + TEXT_MAX_LENGTH)
+#define CONTROL_EVENT_TEXT_MAX_LENGTH 300
+#define CONTROL_EVENT_SERIALIZED_MAX_SIZE (3 + CONTROL_EVENT_TEXT_MAX_LENGTH)
 
 enum control_event_type {
     CONTROL_EVENT_TYPE_KEYCODE,
@@ -59,7 +59,7 @@ struct control_event_queue {
     int tail;
 };
 
-// buf size must be at least SERIALIZED_EVENT_MAX_SIZE
+// buf size must be at least CONTROL_EVENT_SERIALIZED_MAX_SIZE
 int
 control_event_serialize(const struct control_event *event, unsigned char *buf);
 

app/src/controller.c

@@ -51,7 +51,7 @@ controller_push_event(struct controller *controller,
 static bool
 process_event(struct controller *controller,
               const struct control_event *event) {
-    unsigned char serialized_event[SERIALIZED_EVENT_MAX_SIZE];
+    unsigned char serialized_event[CONTROL_EVENT_SERIALIZED_MAX_SIZE];
     int length = control_event_serialize(event, serialized_event);
     if (!length) {
         return false;

app/tests/test_control_event_serialize.c

@@ -13,7 +13,7 @@ static void test_serialize_keycode_event(void) {
         },
     };
 
-    unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
+    unsigned char buf[CONTROL_EVENT_SERIALIZED_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
     assert(size == 10);
 
@@ -34,7 +34,7 @@ static void test_serialize_text_event(void) {
         },
     };
 
-    unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
+    unsigned char buf[CONTROL_EVENT_SERIALIZED_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
     assert(size == 16);
 
@@ -49,20 +49,20 @@ static void test_serialize_text_event(void) {
 static void test_serialize_long_text_event(void) {
     struct control_event event;
     event.type = CONTROL_EVENT_TYPE_TEXT;
-    char text[TEXT_MAX_LENGTH + 1];
+    char text[CONTROL_EVENT_TEXT_MAX_LENGTH + 1];
     memset(text, 'a', sizeof(text));
-    text[TEXT_MAX_LENGTH] = '\0';
+    text[CONTROL_EVENT_TEXT_MAX_LENGTH] = '\0';
     event.text_event.text = text;
 
-    unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
+    unsigned char buf[CONTROL_EVENT_SERIALIZED_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
-    assert(size == 3 + TEXT_MAX_LENGTH);
+    assert(size == 3 + CONTROL_EVENT_TEXT_MAX_LENGTH);
 
-    unsigned char expected[3 + TEXT_MAX_LENGTH];
+    unsigned char expected[3 + CONTROL_EVENT_TEXT_MAX_LENGTH];
     expected[0] = 0x01; // CONTROL_EVENT_TYPE_KEYCODE
     expected[1] = 0x01;
     expected[2] = 0x2c; // text length (16 bits)
-    memset(&expected[3], 'a', TEXT_MAX_LENGTH);
+    memset(&expected[3], 'a', CONTROL_EVENT_TEXT_MAX_LENGTH);
 
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
@@ -86,7 +86,7 @@ static void test_serialize_mouse_event(void) {
         },
     };
 
-    unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
+    unsigned char buf[CONTROL_EVENT_SERIALIZED_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
     assert(size == 18);
 
@@ -119,7 +119,7 @@ static void test_serialize_scroll_event(void) {
         },
     };
 
-    unsigned char buf[SERIALIZED_EVENT_MAX_SIZE];
+    unsigned char buf[CONTROL_EVENT_SERIALIZED_MAX_SIZE];
     int size = control_event_serialize(&event, buf);
     assert(size == 21);