Type Method


Returns whether the application is multithreaded.


+ (BOOL)isMultiThreaded;

Return Value

YES if the application is multithreaded, otherwise NO.


An application is considered multithreaded if a thread was ever detached from the main thread using either detachNewThreadSelector:toTarget:withObject: or start. If you detached a thread in your application using a non-Cocoa API, such as the POSIX or Multiprocessing Services APIs, this method could still return NO. The detached thread does not have to be currently running for the application to be considered multithreaded—this method only indicates whether a single thread has been spawned.

See Also

Querying the Environment


Returns the thread object representing the current thread of execution.


Returns an array containing the call stack return addresses.


Returns an array containing the call stack symbols.