Address clint warnings and other style issues.

* Add const.
* Fix conditions (move && from end to start of line).
* Use int32_t instead of long.
* Use //-style comments.

src/os/event.c

@@ -13,23 +13,23 @@ static void timer_prepare_cb(uv_prepare_t *, int);
 
 void event_init()
 {
-  /* Initialize input events */
+  // Initialize input events
   input_init();
-  /* Timer to wake the event loop if a timeout argument is passed to
-   * `event_poll` */
+  // Timer to wake the event loop if a timeout argument is passed to
+  // `event_poll`
   uv_timer_init(uv_default_loop(), &timer);
-  /* This prepare handle that actually starts the timer */
+  // This prepare handle that actually starts the timer
   uv_prepare_init(uv_default_loop(), &timer_prepare);
 }
 
-/* Wait for some event */
+// Wait for some event
 bool event_poll(int32_t ms)
 {
   bool timed_out;
   uv_run_mode run_mode = UV_RUN_ONCE;
 
   if (input_ready()) {
-    /* If there's a pending input event to be consumed, do it now */
+    // If there's a pending input event to be consumed, do it now
     return true;
   }
 
@@ -37,42 +37,39 @@ bool event_poll(int32_t ms)
   timed_out = false;
 
   if (ms > 0) {
-    /* Timeout passed as argument to the timer */
+    // Timeout passed as argument to the timer
     timer.data = &timed_out;
-    /* We only start the timer after the loop is running, for that we
-     * use an prepare handle(pass the interval as data to it) */
+    // We only start the timer after the loop is running, for that we
+    // use an prepare handle(pass the interval as data to it)
     timer_prepare.data = &ms;
     uv_prepare_start(&timer_prepare, timer_prepare_cb);
   } else if (ms == 0) {
-    /* 
-     * For ms == 0, we need to do a non-blocking event poll by
-     * setting the run mode to UV_RUN_NOWAIT.
-     */
+    // For ms == 0, we need to do a non-blocking event poll by
+    // setting the run mode to UV_RUN_NOWAIT.
     run_mode = UV_RUN_NOWAIT;
   }
 
   do {
-    /* Run one event loop iteration, blocking for events if run_mode is
-     * UV_RUN_ONCE */
+    // Run one event loop iteration, blocking for events if run_mode is
+    // UV_RUN_ONCE
     uv_run(uv_default_loop(), run_mode);
   } while (
-      /* Continue running if ... */
-      !input_ready() && /* ... we have no input */
-      run_mode != UV_RUN_NOWAIT && /* ... ms != 0 */
-      !timed_out  /* ... we didn't get a timeout */
-      );
+      // Continue running if ...
+      !input_ready()  // ... we have no input
+      && run_mode != UV_RUN_NOWAIT  // ... ms != 0
+      && !timed_out);  // ... we didn't get a timeout
 
   input_stop();
 
   if (ms > 0) {
-    /* Stop the timer */
+    // Stop the timer
     uv_timer_stop(&timer);
   }
 
   return input_ready();
 }
 
-/* Set a flag in the `event_poll` loop for signaling of a timeout */
+// Set a flag in the `event_poll` loop for signaling of a timeout
 static void timer_cb(uv_timer_t *handle, int status)
 {
   *((bool *)handle->data) = true;