client: Don't sleep in interrupt context

[tattlekey] / client / tattlekey.c

diff --git a/client/tattlekey.c b/client/tattlekey.c
index d7a82e57eb7267289049a918cfe346b341872b2c..05488eaa7c3a1e02d17170bd6aaa4116afcfad6d 100644 (file)
--- a/client/tattlekey.c
+++ b/client/tattlekey.c
@@ -1,8 +1,21 @@
 #include "pico/cyw43_arch.h"
 #include "pico/stdlib.h"
+#include "pico/util/queue.h"
 
 #include "blink.h"
+#include "button.h"
 #include "config.h"
+#include "net.h"
+
+queue_t queue;
+
+static void button_pressed() {
+  /* This runs in interrupt context; don't linger.  */
+  char zero = '\0';
+  /* We don't check for failure (full queue) here because there's not much to be
+   * done about it. */
+  queue_try_add(&queue, &zero);
+}
 
 int main() {
   stdio_init_all();
@@ -15,5 +28,16 @@ int main() {
                                          CYW43_AUTH_WPA2_AES_PSK, 10000))
     signal_error_by_blinking();
   signal(3, 200);
-  signal_success_by_blinking();
+
+  queue_init(&queue, 1, 99);
+
+  begin_listening_for_button_press(button_pressed);
+
+  u16_t seq = 0;
+  while (1) {
+    char _;
+    queue_remove_blocking(&queue, &_);
+    send_report(seq++, 0);
+    signal(4, 200);
+  }
 }