内存泄漏问题

Question

我是iphone dev和处理内存问题的新手.我正在学习,但有些事情对我来说仍然很神秘.

在下面的例子中,"Instruments"的泄漏分析器说我在databasePath设置中有泄漏.我无法弄清楚为什么.

// databaseName and databasePath are properties of my class.
databaseName = [[NSString alloc] initWithString:@"sqlDbName.sql"];

NSArray *documentPaths = [[NSArray alloc] initWithArray:NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)];

NSString *documentsDir = [[NSString alloc] initWithString:[documentPaths objectAtIndex:0]];

// The problem is here : 
databasePath = [[NSString alloc] initWithString:[documentsDir stringByAppendingPathComponent:databaseName]];

[documentPaths release];
[documentsDir release];

我稍后在dealloc中发布了databaseName和databasePath.

非常感谢您的帮助!

Answer 1

这段代码是否有可能不止一次执行.你已经发布databasePath了dealloc.如果此代码执行多次,databasePath则会因任何连续执行而泄漏.