Mac OS X since 10.0 has had a Cocoa framework class called NSCondition. You can access it using the following definition.
@interface NSCondition : NSObject <NSLocking> {
@private
void* _priv; } - (void) wait; - (BOOL) waitUntilDate:(NSDate*)limit; - (void) signal; // wakes one waiting thread - (void) broadcast; // wake all waiting threads @end
What is it and where is it defined? Never heard of it, never found it… Sounds interesting, can you give us some more info on it?
-marcocoa
It appears to be a Cocoa interface to pthread condition variables. As far as where it’s defined, it’s a private class that you should avoid using if at all possible.
As of Mac OS X 10.5, NSCondition is a public class, so it need not be avoided. (And since it has actually always existed, it may be used in projects targeting earlier OS versions.)