sqlite: refactor open options

Move options that are only relevant for opening the database into a
self-contained class.

PR-URL: nodejs#55442
Reviewed-By: Benjamin Gruenbaum <[email protected]>

Author: tniessen

src/node_sqlite.cc

@@ -96,17 +96,11 @@ inline void THROW_ERR_SQLITE_ERROR(Isolate* isolate, const char* message) {
 
 DatabaseSync::DatabaseSync(Environment* env,
                            Local<Object> object,
-                           Local<String> location,
-                           bool open,
-                           bool enable_foreign_keys_on_open,
-                           bool enable_dqs_on_open)
-    : BaseObject(env, object) {
+                           DatabaseOpenConfiguration&& open_config,
+                           bool open)
+    : BaseObject(env, object), open_config_(std::move(open_config)) {
   MakeWeak();
-  node::Utf8Value utf8_location(env->isolate(), location);
-  location_ = utf8_location.ToString();
   connection_ = nullptr;
-  enable_foreign_keys_on_open_ = enable_foreign_keys_on_open;
-  enable_dqs_on_open_ = enable_dqs_on_open;
 
   if (open) {
     Open();
@@ -132,7 +126,9 @@ DatabaseSync::~DatabaseSync() {
 }
 
 void DatabaseSync::MemoryInfo(MemoryTracker* tracker) const {
-  tracker->TrackField("location", location_);
+  // TODO(tniessen): more accurately track the size of all fields
+  tracker->TrackFieldWithSize(
+      "open_config", sizeof(open_config_), "DatabaseOpenConfiguration");
 }
 
 bool DatabaseSync::Open() {
@@ -143,27 +139,29 @@ bool DatabaseSync::Open() {
 
   // TODO(cjihrig): Support additional flags.
   int flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
-  int r = sqlite3_open_v2(location_.c_str(), &connection_, flags, nullptr);
+  int r = sqlite3_open_v2(
+      open_config_.location().c_str(), &connection_, flags, nullptr);
   CHECK_ERROR_OR_THROW(env()->isolate(), connection_, r, SQLITE_OK, false);
 
   r = sqlite3_db_config(connection_,
                         SQLITE_DBCONFIG_DQS_DML,
-                        static_cast<int>(enable_dqs_on_open_),
+                        static_cast<int>(open_config_.get_enable_dqs()),
                         nullptr);
   CHECK_ERROR_OR_THROW(env()->isolate(), connection_, r, SQLITE_OK, false);
   r = sqlite3_db_config(connection_,
                         SQLITE_DBCONFIG_DQS_DDL,
-                        static_cast<int>(enable_dqs_on_open_),
+                        static_cast<int>(open_config_.get_enable_dqs()),
                         nullptr);
   CHECK_ERROR_OR_THROW(env()->isolate(), connection_, r, SQLITE_OK, false);
 
   int foreign_keys_enabled;
-  r = sqlite3_db_config(connection_,
-                        SQLITE_DBCONFIG_ENABLE_FKEY,
-                        static_cast<int>(enable_foreign_keys_on_open_),
-                        &foreign_keys_enabled);
+  r = sqlite3_db_config(
+      connection_,
+      SQLITE_DBCONFIG_ENABLE_FKEY,
+      static_cast<int>(open_config_.get_enable_foreign_keys()),
+      &foreign_keys_enabled);
   CHECK_ERROR_OR_THROW(env()->isolate(), connection_, r, SQLITE_OK, false);
-  CHECK_EQ(foreign_keys_enabled, enable_foreign_keys_on_open_);
+  CHECK_EQ(foreign_keys_enabled, open_config_.get_enable_foreign_keys());
 
   return true;
 }
@@ -205,9 +203,11 @@ void DatabaseSync::New(const FunctionCallbackInfo<Value>& args) {
     return;
   }
 
+  std::string location =
+      node::Utf8Value(env->isolate(), args[0].As<String>()).ToString();
+  DatabaseOpenConfiguration open_config(std::move(location));
+
   bool open = true;
-  bool enable_foreign_keys = true;
-  bool enable_dqs = false;
 
   if (args.Length() > 1) {
     if (!args[1]->IsObject()) {
@@ -246,7 +246,8 @@ void DatabaseSync::New(const FunctionCallbackInfo<Value>& args) {
             "boolean.");
         return;
       }
-      enable_foreign_keys = enable_foreign_keys_v.As<Boolean>()->Value();
+      open_config.set_enable_foreign_keys(
+          enable_foreign_keys_v.As<Boolean>()->Value());
     }
 
     Local<String> enable_dqs_string = FIXED_ONE_BYTE_STRING(
@@ -264,16 +265,11 @@ void DatabaseSync::New(const FunctionCallbackInfo<Value>& args) {
             "a boolean.");
         return;
       }
-      enable_dqs = enable_dqs_v.As<Boolean>()->Value();
+      open_config.set_enable_dqs(enable_dqs_v.As<Boolean>()->Value());
     }
   }
 
-  new DatabaseSync(env,
-                   args.This(),
-                   args[0].As<String>(),
-                   open,
-                   enable_foreign_keys,
-                   enable_dqs);
+  new DatabaseSync(env, args.This(), std::move(open_config), open);
 }
 
 void DatabaseSync::Open(const FunctionCallbackInfo<Value>& args) {

src/node_sqlite.h

@@ -16,16 +16,37 @@
 namespace node {
 namespace sqlite {
 
+class DatabaseOpenConfiguration {
+ public:
+  explicit DatabaseOpenConfiguration(std::string&& location)
+      : location_(std::move(location)) {}
+
+  inline const std::string& location() const { return location_; }
+
+  inline bool get_enable_foreign_keys() const { return enable_foreign_keys_; }
+
+  inline void set_enable_foreign_keys(bool flag) {
+    enable_foreign_keys_ = flag;
+  }
+
+  inline bool get_enable_dqs() const { return enable_dqs_; }
+
+  inline void set_enable_dqs(bool flag) { enable_dqs_ = flag; }
+
+ private:
+  std::string location_;
+  bool enable_foreign_keys_ = true;
+  bool enable_dqs_ = false;
+};
+
 class StatementSync;
 
 class DatabaseSync : public BaseObject {
  public:
   DatabaseSync(Environment* env,
                v8::Local<v8::Object> object,
-               v8::Local<v8::String> location,
-               bool open,
-               bool enable_foreign_keys_on_open,
-               bool enable_dqs_on_open);
+               DatabaseOpenConfiguration&& open_config,
+               bool open);
   void MemoryInfo(MemoryTracker* tracker) const override;
   static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void Open(const v8::FunctionCallbackInfo<v8::Value>& args);
@@ -47,15 +68,12 @@ class DatabaseSync : public BaseObject {
   void DeleteSessions();
 
   ~DatabaseSync() override;
-  std::string location_;
+  DatabaseOpenConfiguration open_config_;
   sqlite3* connection_;
 
   std::set<sqlite3_session*> sessions_;
   std::unordered_set<StatementSync*> statements_;
-
   friend class Session;
-  bool enable_foreign_keys_on_open_;
-  bool enable_dqs_on_open_;
 };
 
 class StatementSync : public BaseObject {