Class: Dispatch::Group

Inherits:

Object

• Object
• NSObject
• Object
• Dispatch::Group

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Overview

Class Method Summary (collapse)

• + alloc

Instance Method Summary (collapse)

• - Dispatch::Group.new constructor

  Returns a Group allowing for aggregate synchronization, as defined in: dispatch_group_create(3).

• - notify { ... }

  Asynchronously schedules a block to be called when the previously submitted dispatches for that group have completed.

• - notify { ... }

  Asynchronously schedules a block to be called when the previously submitted dispatches for that group have completed.

• - wait

  Waits until all the blocks associated with the grp have finished executing or until the specified timeout has elapsed.

Methods inherited from Object

#dispatch_object, #resume!, #suspend!, #suspended?

Methods inherited from NSObject

#!, #!=, #!~, #<=>, #==, #===, #=~, #Rational, #__callee__, #__method__, #__send__, #__type__, `, allocWithZone:, #autoContentAccessingProxy, autoload, autoload?, autorelease_pool, #awakeAfterUsingCoder:, binding, block_given?, caller, cancelPreviousPerformRequestsWithTarget:, cancelPreviousPerformRequestsWithTarget:selector:object:, catch, class, classFallbacksForKeyedArchiver, #classForCoder, #classForKeyedArchiver, classForKeyedUnarchiver, #clone, conformsToProtocol:, #copy, copyWithZone:, #dealloc, #define_singleton_method, description, display, #doesNotRecognizeSelector:, #dup, #enum_for, #eql?, #equal?, #extend, fail, #finalize, format, #forwardInvocation:, #forwardingTargetForSelector:, framework, #freeze, #frozen?, getpass, gets, global_variables, #init, initialize, #initialize_clone, #initialize_copy, #initialize_dup, #inspect, instanceMethodForSelector:, instanceMethodSignatureForSelector:, #instance_eval, #instance_exec, #instance_of?, #instance_variable_defined?, #instance_variable_get, #instance_variable_set, #instance_variables, instancesRespondToSelector:, isSubclassOfClass:, #is_a?, iterator?, #kind_of?, lambda, load, load_bridge_support_file, load_plist, local_variables, loop, #method, #methodForSelector:, #methodSignatureForSelector:, #methods, #mutableCopy, mutableCopyWithZone:, new, #nil?, open, p, #performSelector:onThread:withObject:waitUntilDone:, #performSelector:onThread:withObject:waitUntilDone:modes:, #performSelector:withObject:afterDelay:, #performSelector:withObject:afterDelay:inModes:, #performSelectorInBackground:withObject:, #performSelectorOnMainThread:withObject:waitUntilDone:, #performSelectorOnMainThread:withObject:waitUntilDone:modes:, print, printf, #private_methods, proc, #protected_methods, #public_method, #public_methods, #public_send, putc, puts, raise, rand, readline, readlines, #replacementObjectForCoder:, #replacementObjectForKeyedArchiver:, require, resolveClassMethod:, resolveInstanceMethod:, #respond_to?, #respond_to_missing?, select, #send, setVersion:, #singleton_methods, sprintf, srand, superclass, #taint, #tainted?, #tap, test, throw, #to_plist, #to_s, trace_var, trap, #trust, #untaint, untrace_var, #untrust, #untrusted?, version

gcdg = Dispatch::Group.new

gcdq = Dispatch::Queue.new('doc')
grp = Dispatch::Group.new
gcdq.async(grp) { print 'foo' }
grp.notify(gcdq) { print 'bar' } #=> foobar

gcdq = Dispatch::Queue.new('doc')
grp = Dispatch::Group.new
gcdq.async(grp) { print 'foo' }
grp.notify(gcdq) { print 'bar' } #=> foobar

gcdq = Dispatch::Queue.new('doc')
grp = Dispatch::Group.new
gcdq.async(grp) { sleep 4 }
grp.wait(5) #=> true