Timers

[daveL]

I want to Start a process in a Service
once a Week

Whats the Best Way to Handle this

I have A completed Service with Threading Manager
But I dont know the Best way to Start a Process
on a Given Day...only once on That Day if Success
if Failure ..then Try Again

Tks
DaveL

[Peter Duniho]

Re: Timers

On Sat, 14 Jun 2008 10:44:28 -0700, daveL <vettes_n_jets@ yahoo.comwrote:

I want to Start a process in a Service
once a Week
>
Whats the Best Way to Handle this

Why not use a Timer class? System.Timers.T imer or System.Threadin g.Timer
would seem appropriate for a service.

Pete

[daveL]

Re: Timers

I am Using System.Timer
Where im having a problem is
Iim not sure how to
go about having this fire once a week and only run once
on a specified Day

Any advice
Thanks DaveL


"Peter Duniho" <NpOeStPeAdM@nn owslpianmk.comw rote in message
news:op.ucribiv z8jd0ej@petes-computer.local. ..

On Sat, 14 Jun 2008 10:44:28 -0700, daveL <vettes_n_jets@ yahoo.comwrote:
>

>I want to Start a process in a Service
>once a Week
>>
>Whats the Best Way to Handle this

>
Why not use a Timer class? System.Timers.T imer or System.Threadin g.Timer
would seem appropriate for a service.
>
Pete

[Peter Duniho]

Re: Timers

On Sat, 14 Jun 2008 17:17:09 -0700, daveL <vettes_n_jets@ yahoo.comwrote:

I am Using System.Timer

There's no such class. Do you mean System.Timers.T imer?

Where im having a problem is
Iim not sure how to
go about having this fire once a week and only run once
on a specified Day

What problem are you having? What about the goal aren't you sure about?
Are you having trouble calculating the number of milliseconds in a week?
Is your code for some reason running the timer elapsed handler more than
once in a day, in spite of having set the interval to a week?

Your question is extremely vague. You really will need to state your
question more clearly to get a useful reply.

Pete

[daveL]

Re: Timers

Im not explaining myself well , because im unsure how to approach this

so do i set the interval to x amount of milliseconds based on milliseconds
in a 24 hour period
then check if its the day i want

also if time to run is involved do i set the timer to lets say hourly and
how to make it precise on the time required to run

the thread is running perfect i just dont have it running like i need
yet....

i hope the above helps..
Thanks DaveL

much appriciated


"daveL" <vettes_n_jets@ yahoo.comwrote in message
news:33Z4k.4043 $L_.3915@flpi15 0.ffdc.sbc.com. ..

>I am Using System.Timer
Where im having a problem is
Iim not sure how to
go about having this fire once a week and only run once
on a specified Day
>
Any advice
Thanks DaveL
>
>
"Peter Duniho" <NpOeStPeAdM@nn owslpianmk.comw rote in message
news:op.ucribiv z8jd0ej@petes-computer.local. ..

>On Sat, 14 Jun 2008 10:44:28 -0700, daveL <vettes_n_jets@ yahoo.com>
>wrote:
>>

>>I want to Start a process in a Service
>>once a Week
>>>
>>Whats the Best Way to Handle this

>>
>Why not use a Timer class? System.Timers.T imer or System.Threadin g.Timer
>would seem appropriate for a service.
>>
>Pete

>
>

[Peter Duniho]

Re: Timers

On Sat, 14 Jun 2008 17:36:41 -0700, daveL <vettes_n_jets@ yahoo.comwrote:

Im not explaining myself well , because im unsure how to approach this
>
so do i set the interval to x amount of milliseconds based on
milliseconds
in a 24 hour period
then check if its the day i want

You could. But why not just set the interval to the number of
milliseconds in a week?

also if time to run is involved do i set the timer to lets say hourly and
how to make it precise on the time required to run

How precise do you need it to be?

It seems to me your best bet is to determine the exact time in the future
you want the timer to execute, calculate the difference between that exact
time and "now", and then use the result of that as the timer delay for a
one-shot timer.

Elapsed time calculation might look like:

DateTime dtEvent = /* initialized to some specific date/time */
TimeSpan tsDelay = dtEvent - DateTime.Now;

Then the milliseconds are "tsDelay.TotalM illiseconds". Assuming you're
using a timer that requires setting in milliseconds, set this for the
elapsed time for the timer and start the timer. It will fire when the
elapsed time has expired. (Obviously for a timer class that accepts a
TimeSpan value, you don't need to use the TotalMillisecon ds property to
convert to milliseconds :) ).

Each timer class has a slightly different syntax for configuring it as a
one-shot timer, so without knowing what class you're using, it's not
possible to say for sure what you would want to do. But, for example, the
System.Timers.T imer class has an AutoReset property which, when set to
false, causes the timer to fire just once. It won't fire again until you
specifically start it again.

Finally, a week is a long time. Obviously you may want to include some
means of re-enabling the timer in case your process exits and is restarted
before the timer fires. This is just a special case of the above
calculation, where the "specific date/time" is the same as it was before,
but of course DateTime.Now returns a new value. :)

the thread is running perfect i just dont have it running like i need
yet....

No offense intended, but that sentence seems self-contradictory. :)

Pete

[daveL]

Re: Timers

about my last sentence....lol I know...
what i meant was i just set the timer to 30 seconds while testing the
threading
so i can make sure all is running correctly, stored procs , processing,
updating etc

now i need to re think the timers on running the way they need to run

1 time once a week at a given time....

I thank you very much for your time and effort
DaveP

"Peter Duniho" <NpOeStPeAdM@nn owslpianmk.comw rote in message
news:op.ucrlpky t8jd0ej@petes-computer.local. ..
On Sat, 14 Jun 2008 17:36:41 -0700, daveL <vettes_n_jets@ yahoo.comwrote:

Im not explaining myself well , because im unsure how to approach this
>
so do i set the interval to x amount of milliseconds based on
milliseconds
in a 24 hour period
then check if its the day i want

You could. But why not just set the interval to the number of
milliseconds in a week?

also if time to run is involved do i set the timer to lets say hourly and
how to make it precise on the time required to run

How precise do you need it to be?

It seems to me your best bet is to determine the exact time in the future
you want the timer to execute, calculate the difference between that exact
time and "now", and then use the result of that as the timer delay for a
one-shot timer.

Elapsed time calculation might look like:

DateTime dtEvent = /* initialized to some specific date/time */
TimeSpan tsDelay = dtEvent - DateTime.Now;

Then the milliseconds are "tsDelay.TotalM illiseconds". Assuming you're
using a timer that requires setting in milliseconds, set this for the
elapsed time for the timer and start the timer. It will fire when the
elapsed time has expired. (Obviously for a timer class that accepts a
TimeSpan value, you don't need to use the TotalMillisecon ds property to
convert to milliseconds :) ).

Each timer class has a slightly different syntax for configuring it as a
one-shot timer, so without knowing what class you're using, it's not
possible to say for sure what you would want to do. But, for example, the
System.Timers.T imer class has an AutoReset property which, when set to
false, causes the timer to fire just once. It won't fire again until you
specifically start it again.

Finally, a week is a long time. Obviously you may want to include some
means of re-enabling the timer in case your process exits and is restarted
before the timer fires. This is just a special case of the above
calculation, where the "specific date/time" is the same as it was before,
but of course DateTime.Now returns a new value. :)

the thread is running perfect i just dont have it running like i need
yet....

No offense intended, but that sentence seems self-contradictory. :)

Pete