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system.timers.timer for very large intervals
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Peter Maco (VIP)
I created system.timers.timer for very long interval from TimeSpan.MaxValue:

myTimer = new System.Timers.Timer(TimeSpan.MaxValue.TotalMilliseconds)

After calling Enable = true I have a ArgumentOutOfRangeException exception.
I found out that timer internally uses System.Threading.Timer object and uses
constructor with "int" for dueTime. I suppose it explicitly converts double
to int without checking for overflow and System.Threading.Timer is created
with negative number for dueTime which throws an exception.
Is it a bug ?
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Robert Jordan
Peter Maco wrote:

[Original message clipped]

No. The argument is obviously out of range, so what? ;-)

bye
Rob
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Peter Maco (VIP)
Out of range ??? There is no range in documentation and no
ArgumentOutOfRangeException exception expected (in documentation). So I
consider it as bug.

"Robert Jordan" wrote:

[Original message clipped]
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Robert Jordan
Peter Maco wrote:

[Original message clipped]

myTimer = new System.Timers.Timer(TimeSpan.MaxValue.TotalMilliseconds)

TimeSpan.MaxValue is equivalent to 9,223,372,036,854,775,807,
And this IS out of every range I can think about.

bye
Rob

[Original message clipped]
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Girish bharadwaj
System.Timers.Timer takes a Double. I set it to Double.MaxValue with no
exceptions.
What version of .NET framework are you using?

--
Girish Bharadwaj
http://msmvps.com/gbvb
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Daniel Carlsson
Considering the documentation doesnt mention any
ArgumentOutOfRangeExceptions Id say its a bug yes.
If you really need to wait for a very long time before doing something you
should probably use a thread instead, which could contain an DateTime with
the time it should call a function.

"Peter Maco" <Peter Click here to reveal e-mail address> wrote in message
news:Click here to reveal e-mail address...
> I created system.timers.timer for very long interval from
TimeSpan.MaxValue:
[Original message clipped]
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Willy Denoyette [MVP] (VIP)
"Peter Maco" <Peter Click here to reveal e-mail address> wrote in message
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[Original message clipped]

I would say this is a "documentation" bug.
The System.Timers.Timer takes a double as argument, but the value must be 0
=> interval <= Int32.MaxValue, or -1.
The same goes for System.Threading.Timer which takes an int or a long as
interval, but again the value of the interval is restricted to Int32.MaxVal.
This is because the underlying OS WaitableTimer object uses a long (signed
32 bit in C) for the period of the timer.

Willy.
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System.ArgumentOutOfRangeException
System.DateTime
System.Double
System.Int32
System.Threading.Timer
System.Timers.Timer
System.TimeSpan




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