More than 5 years have passed since last update.

スレッドセーフに1回だけ実行させる

Objective-C
SQLite

Last updated at 2014-02-08Posted at 2014-02-08

シングルトンとかで使う感じかな。

+ (HKSQLite *) sharedSQLite
{
	static HKSQLite *_SQLite;
	static dispatch_once_t onceToken;
	dispatch_once(&onceToken, ^{
		_SQLite = [[HKSQLite alloc] initWithPath:self.path];
		[_SQLite setup];
	});
	return _SQLite;
}

You get articles that match your needs
You can efficiently read back useful information
You can use dark theme

What you can do with signing up