feat: 会話メモリのプロトタイプを実装

- 6種類のMCPツールと入力検証を追加
- バイナリログ、スナップショット、復旧、圧縮処理を実装
- Unicode n-gram検索とドメインモデルを追加
- 単体テストと統合テストを追加
- アーキテクチャと実装状況を文書化
- Cコードの記述スタイルを統一

1 files changed, 97 insertions, 0 deletions

diff --git a/tests/storage_test.c b/tests/storage_test.c
new file mode 100644
index 0000000..bac0f0b
--- /dev/null
+++ b/tests/storage_test.c
@@ -0,0 +1,97 @@
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#include "storage/store.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int failures;
+#define CHECK(value)                                                                               \
+  do                                                                                               \
+    {                                                                                              \
+      if (!(value))                                                                                \
+        {                                                                                          \
+          fprintf(stderr, "CHECK failed at line %d: %s\n", __LINE__, #value);                      \
+          failures++;                                                                              \
+        }                                                                                          \
+    }                                                                                              \
+  while (0)
+
+int
+wmain(void)
+{
+  wchar_t temporary[MAX_PATH], directory[MAX_PATH], log_path[MAX_PATH];
+  tiny_store_t *store = NULL, *second = NULL;
+  tiny_message_t input, first, second_message;
+  tiny_store_status_t status;
+  HANDLE log;
+  HANDLE blocker;
+  tiny_rebuild_report_t report;
+  LARGE_INTEGER position;
+  unsigned char byte;
+  DWORD count;
+
+  CHECK(GetTempPathW(MAX_PATH, temporary) > 0);
+  CHECK(GetTempFileNameW(temporary, L"tcm", 0, directory) > 0);
+  DeleteFileW(directory);
+  CHECK(CreateDirectoryW(directory, NULL) != 0);
+  status = tiny_store_open(&store, directory);
+  CHECK(status == TINY_STORE_OK);
+  CHECK(tiny_store_open(&second, directory) == TINY_STORE_BUSY);
+
+  tiny_message_init(&input);
+  tiny_message_init(&first);
+  tiny_message_init(&second_message);
+  input.session_id = _strdup("unit");
+  input.content = _strdup("first");
+  input.role = TINY_ROLE_USER;
+  CHECK(tiny_store_write(store, &input, &first) == TINY_STORE_OK);
+  free(input.content);
+  input.content = _strdup("second");
+  CHECK(tiny_store_write(store, &input, &second_message) == TINY_STORE_OK);
+  CHECK(strcmp(first.message_id, second_message.message_id) < 0);
+  tiny_message_free(&input);
+  tiny_message_free(&first);
+  tiny_message_free(&second_message);
+  tiny_store_close(store);
+  store = NULL;
+
+  CHECK(tiny_store_open(&store, directory) == TINY_STORE_OK);
+  CHECK(tiny_store_entry_count(store) == 2);
+  swprintf_s(log_path, MAX_PATH, L"%s\\active.tmp", directory);
+  blocker = CreateFileW(
+      log_path, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+  CHECK(blocker != INVALID_HANDLE_VALUE);
+  CHECK(tiny_store_rebuild(store, &report) == TINY_STORE_IO_ERROR);
+  CHECK(tiny_store_entry_count(store) == 2);
+  CloseHandle(blocker);
+  DeleteFileW(log_path);
+  tiny_store_close(store);
+  store = NULL;
+
+  swprintf_s(log_path, MAX_PATH, L"%s\\active.log", directory);
+  log = CreateFileW(
+      log_path, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+  CHECK(log != INVALID_HANDLE_VALUE);
+  position.QuadPart = -1;
+  CHECK(SetFilePointerEx(log, position, NULL, FILE_END) != 0);
+  CHECK(ReadFile(log, &byte, 1, &count, NULL) != 0 && count == 1);
+  byte ^= 0x5a;
+  position.QuadPart = -1;
+  CHECK(SetFilePointerEx(log, position, NULL, FILE_CURRENT) != 0);
+  CHECK(WriteFile(log, &byte, 1, &count, NULL) != 0 && count == 1);
+  CloseHandle(log);
+  CHECK(tiny_store_open(&store, directory) == TINY_STORE_CORRUPT);
+
+  DeleteFileW(log_path);
+  swprintf_s(log_path, MAX_PATH, L"%s\\active.tmp", directory);
+  DeleteFileW(log_path);
+  swprintf_s(log_path, MAX_PATH, L"%s\\store.lock", directory);
+  DeleteFileW(log_path);
+  swprintf_s(log_path, MAX_PATH, L"%s\\snapshot.bin", directory);
+  DeleteFileW(log_path);
+  RemoveDirectoryW(directory);
+  return failures == 0 ? 0 : 1;
+}