Import of the watch repository from Pebble

tests/fakes/fake_app_timer.h

@@ -0,0 +1,162 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "applib/app_timer.h"
+#include "system/logging.h"
+
+#include <string.h>
+
+typedef struct FakeAppTimer {
+  uint32_t timeout_ms;
+  bool repeating;
+  AppTimerCallback callback;
+  void* callback_data;
+  struct FakeAppTimer *next;
+  uint32_t timer_id;
+} FakeAppTimer;
+
+static FakeAppTimer *s_fake_app_timer_head;
+static uint32_t s_fake_app_timer_next_id;
+
+static FakeAppTimer *prv_find_fake_app_timer_by_timer_id(uint32_t timer_id) {
+  for (FakeAppTimer *node = s_fake_app_timer_head; node != NULL; node = node->next) {
+    if (node->timer_id == timer_id) {
+      return node;
+    }
+  }
+  return NULL;
+}
+
+void fake_app_timer_init(void) {
+  s_fake_app_timer_head = NULL;
+  s_fake_app_timer_next_id = 0;
+}
+
+void fake_app_timer_deinit(void) {
+  FakeAppTimer *timer = s_fake_app_timer_head;
+  while (timer) {
+    FakeAppTimer *next = timer->next;
+    app_timer_cancel((AppTimer *)timer);
+    timer = next;
+  }
+}
+
+uint32_t fake_app_timer_get_timeout(AppTimer *timer) {
+  FakeAppTimer *fake_timer = prv_find_fake_app_timer_by_timer_id((uintptr_t)timer);
+  if (fake_timer) {
+    return fake_timer->timeout_ms;
+  }
+
+  return 0;
+}
+
+bool fake_app_timer_is_scheduled(AppTimer *timer) {
+  return (prv_find_fake_app_timer_by_timer_id((uintptr_t)timer) != NULL);
+}
+
+AppTimer* app_timer_register(uint32_t timeout_ms, AppTimerCallback callback, void* callback_data) {
+  FakeAppTimer *fake_timer = malloc(sizeof(FakeAppTimer));
+  *fake_timer = (FakeAppTimer) {
+    .timeout_ms = timeout_ms,
+    .callback = callback,
+    .callback_data = callback_data,
+    .next = s_fake_app_timer_head,
+    .timer_id = ++s_fake_app_timer_next_id,
+  };
+
+  s_fake_app_timer_head = fake_timer;
+  return (AppTimer *)(uintptr_t)fake_timer->timer_id;
+}
+
+AppTimer* app_timer_register_repeatable(uint32_t timeout_ms,
+                                        AppTimerCallback callback,
+                                        void* callback_data,
+                                        bool repeating) {
+  FakeAppTimer *fake_timer = malloc(sizeof(FakeAppTimer));
+  *fake_timer = (FakeAppTimer) {
+    .timeout_ms = timeout_ms,
+    .repeating = repeating,
+    .callback = callback,
+    .callback_data = callback_data,
+    .next = s_fake_app_timer_head,
+    .timer_id = ++s_fake_app_timer_next_id,
+  };
+
+  s_fake_app_timer_head = fake_timer;
+  return (AppTimer *)(uintptr_t)fake_timer->timer_id;
+}
+
+bool app_timer_reschedule(AppTimer *timer, uint32_t new_timeout_ms) {
+  FakeAppTimer *fake_timer = prv_find_fake_app_timer_by_timer_id((uintptr_t)timer);
+  if (fake_timer) {
+    fake_timer->timeout_ms = new_timeout_ms;
+    return true;
+  }
+  return false;
+}
+
+static void prv_unlink_and_free_timer(FakeAppTimer *timer) {
+  FakeAppTimer *prev_timer = s_fake_app_timer_head;
+  if (timer == s_fake_app_timer_head) {
+    // The timer is the head
+    s_fake_app_timer_head = timer->next;
+  } else {
+    // Not the head, find the previous one:
+    while (prev_timer && prev_timer != timer &&
+	   prev_timer->next && prev_timer->next != timer) {
+      prev_timer = prev_timer->next;
+    }
+    if (!prev_timer) {
+      PBL_LOG(LOG_LEVEL_ERROR, "Tried to unlink and free non-existing timer %p", timer);
+      return;
+    }
+    prev_timer->next = timer->next;
+  }
+  free(timer);
+}
+
+void app_timer_cancel(AppTimer *timer) {
+  FakeAppTimer *fake_timer = prv_find_fake_app_timer_by_timer_id((uintptr_t)timer);
+  if (fake_timer) {
+    prv_unlink_and_free_timer(fake_timer);
+  }
+}
+
+bool app_timer_trigger(AppTimer *timer) {
+  FakeAppTimer *fake_timer = prv_find_fake_app_timer_by_timer_id((uintptr_t)timer);
+  if (fake_timer) {
+    AppTimerCallback callback = fake_timer->callback;
+    void *data = fake_timer->callback_data;
+    if (!fake_timer->repeating) {
+      prv_unlink_and_free_timer(fake_timer);
+    }
+    callback(data);
+    return true;
+  }
+  return false;
+}
+
+void *app_timer_get_data(AppTimer *timer) {
+  FakeAppTimer *fake_timer = prv_find_fake_app_timer_by_timer_id((uintptr_t)timer);
+  if (fake_timer) {
+    return fake_timer->callback_data;
+  } else {
+    return NULL;
+  }
+}
+