I am building a simple database using a tree and a ReferenceStream as learned here. I want it to update the disk file every 10 min. with the current tree. What should I do?
The classes Time, Duration, Stopwatch, Schedule, look like possibilities but the only method that looks good is Schedule "between: aStart and: anEnd do: aBlock" but I don't want it to hang waiting on the timer so the tree can't take my changes. How do I make something perform like a text editor that saves its work every 10 min?
Thanks,
Kirk Fraser
Sleeping on a problem helped in this case.
Time current minutes < timer minutes + 10 ifTrue: [^#waiting]. timer := Time current.
I put that in an update method called by methods that change the data. Not guaranteed every 10 min depending on user behavior but close enough and easier than defining a process.
On Fri, May 1, 2015 at 10:14 PM, Kirk Fraser overcomer.man@gmail.com wrote:
I am building a simple database using a tree and a ReferenceStream as learned here. I want it to update the disk file every 10 min. with the current tree. What should I do?
The classes Time, Duration, Stopwatch, Schedule, look like possibilities but the only method that looks good is Schedule "between: aStart and: anEnd do: aBlock" but I don't want it to hang waiting on the timer so the tree can't take my changes. How do I make something perform like a text editor that saves its work every 10 min?
Thanks,
Kirk Fraser
Woops! What if timer + 10 gets bigger than 60?
Time current - timer < 10
When you can't get help, help yourself!
On Sat, May 2, 2015 at 10:21 PM, Kirk Fraser overcomer.man@gmail.com wrote:
Sleeping on a problem helped in this case.
Time current minutes < timer minutes + 10 ifTrue: [^#waiting]. timer := Time current.
I put that in an update method called by methods that change the data. Not guaranteed every 10 min depending on user behavior but close enough and easier than defining a process.
On Fri, May 1, 2015 at 10:14 PM, Kirk Fraser overcomer.man@gmail.com wrote:
I am building a simple database using a tree and a ReferenceStream as learned here. I want it to update the disk file every 10 min. with the current tree. What should I do?
The classes Time, Duration, Stopwatch, Schedule, look like possibilities but the only method that looks good is Schedule "between: aStart and: anEnd do: aBlock" but I don't want it to hang waiting on the timer so the tree can't take my changes. How do I make something perform like a text editor that saves its work every 10 min?
Thanks,
Kirk Fraser
beginners@lists.squeakfoundation.org
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Kirk Fraser