Import of the watch repository from Pebble

tests/fakes/ram_storage.h

@@ -0,0 +1,64 @@
+/*
+ * 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 <stdint.h>
+#include <stdbool.h>
+
+#include "system/status_codes.h"
+#include "util/list.h"
+
+typedef enum {
+  RamStorageFlagDirty = 1 << 0,
+} RamStorageFlag;
+
+typedef struct {
+  ListNode node;
+  uint8_t flags;
+  uint8_t *key;
+  int key_len;
+  uint8_t *val;
+  int val_len;
+} RamStorageEntry;
+
+typedef struct {
+  RamStorageEntry *entries;
+} RamStorage;
+
+RamStorage ram_storage_create(void);
+
+status_t ram_storage_insert(RamStorage *storage,
+    const uint8_t *key, int key_len, const uint8_t *val, int val_len);
+
+int ram_storage_get_len(RamStorage *storage,
+    const uint8_t *key, int key_len);
+
+status_t ram_storage_read(RamStorage *storage,
+    const uint8_t *key, int key_len, uint8_t *val_out, int val_len);
+
+status_t ram_storage_delete(RamStorage *storage,
+    const uint8_t *key, int key_len);
+
+status_t ram_storage_flush(RamStorage *storage);
+
+typedef bool (RamStorageEachCb)(RamStorageEntry *entry, void *context);
+
+status_t ram_storage_each(RamStorage *storage, RamStorageEachCb cb, void *context);
+
+status_t ram_storage_is_dirty(RamStorage *storage, bool *is_dirty_out);
+
+status_t ram_storage_mark_synced(RamStorage *storage, uint8_t *key, int key_len);