demo/high_res: remove bug causing 100% CPU utilization of one core

Add delay while polling for the status of play/pause button in the audio thread Signed-off-by: Divyansh Mittal <[email protected]>
TexasInstruments · Feb 3, 2025 · 325872b · 325872b
1 parent 6c3f1ce
commit 325872b
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Showing 2 changed files with 12 additions and 11 deletions.
diff --git a/demos/high_res/audio.c b/demos/high_res/audio.c
@@ -116,6 +116,7 @@ void *audio_play() {
                             pcm = snd_pcm_pause(pcm_handle, 1);
                         }
                         pthread_mutex_unlock(&playing_now_lock);
+                        usleep(250000);
                     }
 
                     if (pcm = read(fd, buff, buff_size) == 0) {

diff --git a/demos/high_res/button.c b/demos/high_res/button.c
@@ -73,17 +73,17 @@ void *button_init(lv_demo_high_res_api_t * api)
         int last_val=-1;
         int curr_val=-1;
         while (read(fd, &ie, sizeof(struct input_event))) {
-                if(ie.type != 1)
-                    continue;
-                curr_val = ie.value;
-                if(curr_val==0 && last_val > 0){
-                    fprintf(stderr, "Button Released!!\n");
-                    lv_lock();
-                    int lock_status = lv_subject_get_int(&api->subjects.locked);
-                    lv_subject_set_int(&api->subjects.locked, !lock_status);
-                    lv_unlock();
-                }
-                last_val = curr_val;
+            if(ie.type != 1)
+                continue;
+            curr_val = ie.value;
+            if(curr_val==0 && last_val > 0){
+                fprintf(stderr, "Button Released!!\n");
+                lv_lock();
+                int lock_status = lv_subject_get_int(&api->subjects.locked);
+                lv_subject_set_int(&api->subjects.locked, !lock_status);
+                lv_unlock();
+            }
+            last_val = curr_val;
         }
 
         close(fd);