Re: Event.pm and synchronized timers?

>Thanks for the Event Perl module! It looks like it may make my job easier. I 
>did have a question that I couldn't answer after reading the documentation, 
>though:
>
>I would like to use Event for controlling a data collection program. I would 
>like the data for multiple channels to be collected as near to simultaneously 
>(to the second or so) as possible.
>
>I may use separate processes doing the collection, and I will probably have 
>multiple channels collected with a single process.
>
>Let's say that every channel is to be collected every minute. I'd like to set 
>everything up so that the sampling happens at the same time both within a 
>process and across multiple processes. Sampling won't take too long in the 
>usual case (typically less than a second for serial port devices, less than 
>100 msec for other devices).
>
>How can I force events to occur at a specific time (and, say, every minute 
>after that time)? Would it be sufficient to wait to start the loop until just 
>the right point in time? I saw the 'hard' watcher option; I'm assuming that I 
>want to set that.
>
>Can I tweak a periodic event to occur next at the right time somehow?
>
>I figured that I could synchronize multiple processes by passing them the 
>base start time and interval; they could wait until the next time that:
>	(time() - baseTime) % interval == 0
>and then start their loops or otherwise synchronize.

Did you try $timer->hard(1) ?


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