Lock key resources in IOS threads

Source: Internet
Author: User

Create a view-based application,

Viewcontroller. hCodeAs follows:

# Import <uikit/uikit. h>

@ Interface tconditionviewcontroller: uiviewcontroller {
Int tickets;
Nsthread * T1;
Nsthread * t2;
Nscondition * TC;
-(Void) dosomething :( ID) tname;
@ End


The viewcontroller. m code is as follows:

# Import "tconditionviewcontroller. H"

@ Implementation tconditionviewcontroller
-(Void) dosomething :( ID) tname
Nsstring * name = (nsstring *) tname;
While (true ){
Nslog (@ "in thread % @", name );
[Nsthread sleepfortimeinterval: 1];
[TC lock];
Nslog (@ "KKKK ");
[TC unlock];
-(Void) dealloc
[Super dealloc];

-(Void) didreceivememorywarning
// Releases the view if it doesn't have a superview.
[Super didreceivememorywarning];

// Release any cached data, images, etc that aren't in use.

# Pragma mark-view Lifecycle

// Implement viewdidload to do additional setup after loading the view, typically from a nib.
-(Void) viewdidload
TC = [[nscondition alloc] init];
T1 = [[nsthread alloc] initwithtarget: Self selector: @ selector (dosomething :) object: @ "1"];
[T1 start];
T2 = [[nsthread alloc] initwithtarget: Self selector: @ selector (dosomething :) object: @ "2"];
[T2 start];
[Super viewdidload];

-(Void) viewdidunload
[Super viewdidunload];
// Release any retained subviews of the main view.
// E.g. Self. myoutlet = nil;

-(Bool) shouldautorotatetointerfaceorientation :( uiinterfaceorientation) interfaceorientation
// Return YES For supported orientations
Return (interfaceorientation = uiinterfaceorientationportrait );

@ End


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