Timers run on the creating thread?

Water Cooler v2

Do timers run on the same thread that creates them or (internally) a
new thread is spawned per timer?

Jul 11 '06 #1

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Damien

Water Cooler v2 wrote:

Do timers run on the same thread that creates them or (internally) a
new thread is spawned per timer?

It depends on which Timer you are referring to. If it is the Timer
within System.Windows.Forms, then it'll run on the UI thread. If it's
the Timer within System.Threading, then I believe it runs in another
thread. Whether this thread is newly created, or from the thread pool,
or from some internal pool, I'm not sure. But I'm fairly certain it
won't be the original thread. After all, the original thread has
carried on, and could be in any state when the timer elapses (e.g. it
might be in the middle of a multi-second database call)

Damien

Jul 11 '06 #2

Michael D. Ober

The System.Threading timer events are executed from a Thread Pool thread.

Mike Ober.

"Damien" <Da*******************@hotmail.comwrote in message
news:11*********************@s13g2000cwa.googlegro ups.com...

Water Cooler v2 wrote:
Do timers run on the same thread that creates them or (internally) a
new thread is spawned per timer?

It depends on which Timer you are referring to. If it is the Timer
within System.Windows.Forms, then it'll run on the UI thread. If it's
the Timer within System.Threading, then I believe it runs in another
thread. Whether this thread is newly created, or from the thread pool,
or from some internal pool, I'm not sure. But I'm fairly certain it
won't be the original thread. After all, the original thread has
carried on, and could be in any state when the timer elapses (e.g. it
might be in the middle of a multi-second database call)

Damien

Jul 12 '06 #3

Dennis

Which thread will receive the event then for the System.Threading timer.
--
Dennis in Houston
"Michael D. Ober" wrote:

The System.Threading timer events are executed from a Thread Pool thread.

Mike Ober.

"Damien" <Da*******************@hotmail.comwrote in message
news:11*********************@s13g2000cwa.googlegro ups.com...
Water Cooler v2 wrote:
Do timers run on the same thread that creates them or (internally) a
new thread is spawned per timer?
It depends on which Timer you are referring to. If it is the Timer
within System.Windows.Forms, then it'll run on the UI thread. If it's
the Timer within System.Threading, then I believe it runs in another
thread. Whether this thread is newly created, or from the thread pool,
or from some internal pool, I'm not sure. But I'm fairly certain it
won't be the original thread. After all, the original thread has
carried on, and could be in any state when the timer elapses (e.g. it
might be in the middle of a multi-second database call)

Damien

Jul 13 '06 #4

William Stacey [MVP]

The callback is run on a ThreadPool thread. What event are you referring
to? tia

--
William Stacey [MVP]

"Dennis" <De****@discussions.microsoft.comwrote in message
news:1F**********************************@microsof t.com...
| Which thread will receive the event then for the System.Threading timer.
| --
| Dennis in Houston
|
|
| "Michael D. Ober" wrote:
|
| The System.Threading timer events are executed from a Thread Pool
thread.
| >
| Mike Ober.
| >
| "Damien" <Da*******************@hotmail.comwrote in message
| news:11*********************@s13g2000cwa.googlegro ups.com...
| Water Cooler v2 wrote:
| Do timers run on the same thread that creates them or (internally) a
| new thread is spawned per timer?
|
| It depends on which Timer you are referring to. If it is the Timer
| within System.Windows.Forms, then it'll run on the UI thread. If it's
| the Timer within System.Threading, then I believe it runs in another
| thread. Whether this thread is newly created, or from the thread pool,
| or from some internal pool, I'm not sure. But I'm fairly certain it
| won't be the original thread. After all, the original thread has
| carried on, and could be in any state when the timer elapses (e.g. it
| might be in the middle of a multi-second database call)
|
| Damien
|
|
| >
| >
| >
| >

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