Import of the watch repository from Pebble

src/fw/applib/app_inbox.c

@@ -0,0 +1,60 @@
+/*
+ * 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.
+ */
+
+#include "app_inbox.h"
+
+#include "applib/applib_malloc.auto.h"
+#include "services/normal/app_inbox_service.h"
+#include "syscall/syscall.h"
+#include "system/logging.h"
+#include "system/passert.h"
+
+AppInbox *app_inbox_create_and_register(size_t buffer_size, uint32_t min_num_messages,
+                                        AppInboxMessageHandler message_handler,
+                                        AppInboxDroppedHandler dropped_handler) {
+  if (!message_handler) {
+    return NULL;
+  }
+  if (!buffer_size) {
+    return NULL;
+  }
+  if (!min_num_messages) {
+    return NULL;
+  }
+  buffer_size += (min_num_messages * sizeof(AppInboxMessageHeader));
+  uint8_t *buffer = applib_zalloc(buffer_size);
+  if (!buffer) {
+    PBL_LOG(LOG_LEVEL_ERROR, "Not enough memory to allocate App Inbox of size %"PRIu32,
+            (uint32_t)buffer_size);
+    return NULL;
+  }
+  if (!sys_app_inbox_service_register(buffer, buffer_size, message_handler, dropped_handler)) {
+    applib_free(buffer);
+    return NULL;
+  }
+  return (AppInbox *) buffer;
+}
+
+uint32_t app_inbox_destroy_and_deregister(AppInbox *app_inbox) {
+  uint8_t *buffer = (uint8_t *)app_inbox;
+  uint32_t num_messages_lost = sys_app_inbox_service_unregister(buffer);
+  applib_free(buffer);
+  return num_messages_lost;
+}
+
+void app_inbox_consume(AppInboxConsumerInfo *consumer_info) {
+  sys_app_inbox_service_consume(consumer_info);
+}