| Package | flash.sampler |
| Class | public class Sample |
| Inheritance | Sample  Object |
| Subclasses | DeleteObjectSample, NewObjectSample |
| Language Version: | ActionScript 3.0 |
| Runtime Versions: | AIR 1.0, Flash Player 9.0.115.0 |
More examples
Related API Elements
Public Properties
| Property | Defined By | ||
|---|---|---|---|
 | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
Public Methods
| Method | Defined By | ||
|---|---|---|---|
|
Indicates whether an object has a specified property defined. | Object | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
|
Returns the string representation of the specified object. | Object | |
|
Returns the primitive value of the specified object. | Object | |
Public Constants
| Constant | Defined By | ||
|---|---|---|---|
| stack : Array
Contains information about the methods executed by Flash Player over a specified period of time. | Sample | ||
| time : Number
The microseconds that define the duration of the Sample instance. | Sample | ||
Constant Detail
stack | Constant |
public const stack:Array| Language Version: | ActionScript 3.0 |
| Runtime Versions: | AIR 1.0, Flash Player 9.0.115.0 |
Contains information about the methods executed by Flash Player over a specified period of time. The format for the stack trace is similiar to the content shown in the exception dialog box of the Flash Player debugger version. For Flash Player debugger version only.
time | Constant |
public const time:Number| Language Version: | ActionScript 3.0 |
| Runtime Versions: | AIR 1.0, Flash Player 9.0.115.0 |
The microseconds that define the duration of the Sample instance. For Flash Player debugger version only.
Examples How to use this example
SampleTypesExample.as
The following example uses the
stack and time properties of a Sample object
s to collect memory samples. The samples contain NewObjectSample objects (the
newSamples array), DeleteObjectSample objects (the delSamples array), and CPU memory sample
objects (the cpuSamples array). To use
the memory profiler, you need to have Flash Player debugger version 9.0.115.0 or later installed.
package
{
import flash.sampler.*
import flash.system.*
import flash.utils.*
import flash.display.Sprite
public class sampleTypes extends Sprite
{
var b:Boolean = true
public function sampleTypes() {
flash.sampler.startSampling();
for(var i:int=0;i<10000;i++)
new Object();
var cpuSamples:Array=[];
var newSamples:Array=[];
var delSamples:Array=[];
var ids:Array=[]
var lastTime:Number=0;
for each(var s:Sample in getSamples()) {
assert(s.time > 0); // positive
assert(Math.floor(s.time) == s.time, s.time); // integral
assert(s.time >= lastTime, s.time + ":" + lastTime); // ascending
assert(s.stack == null || s.stack is Array)
if(s.stack) {
assert(s.stack[0] is StackFrame);
assert(s.stack[0].name is String);
}
if(s is NewObjectSample) {
var nos = NewObjectSample(s);
assert(s.id > 0, s.id);
assert(s.type is Class, getQualifiedClassName(s.type));
newSamples.push(s);
ids[s.id] = "got one";
} else if(s is DeleteObjectSample) {
var dos = DeleteObjectSample(s);
delSamples.push(s);
assert(ids[dos.id] == "got one");
} else if(s is Sample)
cpuSamples.push(s);
else {
assert(false);
}
lastTime = s.time;
}
trace(b)
trace(newSamples.length > 0)
trace(cpuSamples.length > 0)
trace(delSamples.length > 0)
}
private function assert(e:Boolean, mess:String=null):void {
b = e && b;
if(true && !e) {
if(mess) trace(mess);
trace(new Error().getStackTrace());
}
}
}
}
Thu Dec 4 2014, 05:50 PM -08:00