Class: NSLock

Inherits:
NSObject show all

Overview

An NSLock object is used to coordinate the operation of multiple threads of execution within the same application. An NSLock object can be used to mediate access to an application’s global data or to protect a critical section of code, allowing it to run atomically.

Instance Method Summary (collapse)

Methods inherited from NSObject

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Constructor Details

This class inherits a constructor from NSObject

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class NSObject

Instance Method Details

- (Boolean) lockBeforeDate(limit)

Attempts to acquire a lock before a given time and returns a Boolean value indicating whether the attempt was successful. The thread is blocked until the receiver acquires the lock or limit is reached.

Parameters:

  • limit (NSDate) —

    The time limit for attempting to acquire a lock.

Returns:

  • (Boolean) —

    YES if the lock is acquired before limit, otherwise NO.

- (String) name

Returns the name associated with the receiver.

Returns:

  • (String) —

    The name of the receiver.

- (Object) setName(newName)

Assigns a name to the receiver. You can use a name string to identify a lock within your code. Cocoa also uses this name as part of any error descriptions involving the receiver.

Parameters:

  • newName (String) —

    The new name for the receiver. This method makes a copy of the specified string.

Returns:

- (Boolean) tryLock

Attempts to acquire a lock and immediately returns a Boolean value that indicates whether the attempt was successful.

Returns:

  • (Boolean) —

    YES if the lock was acquired, otherwise NO.