Objective-C @synchronized GCDメモ - k_kinukawaã®æ—¥è¨˜ãµã¨æ°—ã«ãªã£ãŸã®ã§å®Ÿé¨“ã—ã¦ã¿ãŸã€‚ Objective-Cã®@synchronizedã¯ã€ã¤ã¾ã‚Šã¯mutexらã—ã„。 Appleã®ãƒ‰ã‚ュメントã«æ›¸ã„ã¦ã‚ã£ãŸã€‚ 例ãˆã°ã€ @implementation Singleton @synthesize count; static Singleton* singleton = nil; + (id)sharedObject{ if (!singleton) { singleton = [[Singleton alloc]init]; singleton.count = 0; } return singleton; } - (void)increment{ count ++; NSLog(@"%d",count); } @end ã“ã‚“ãªæ„Ÿã˜ã§ã‚·ãƒ³ã‚°ãƒ«ãƒˆãƒ³ãªã‚ªãƒ–ジェクトを用æ„ã—ã¦ã€incrementã‚’GCD使ã£ã¦10万回呼んã§ã¿ãŸã€‚ Singleton
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