I think I may not have been very clear.
This isn't LiveCode doing anything special; just a standalone LiveCode app
that either does something immediately on launch (and then quits), or inspects
the command line parameters to decide what to do (and then quits).
I usually create a .bat file (on Windows) or .sh file (on Mac/Linux) to run
the LC app with the appropriate parameters.
On Windows you run the "Task Scheduler" and create a task to run the .bat
file, with whatever schedules you like. On Mac/Linux you edit the 'crontab'
file adding one or more lines with the interesting syntax to execute the .sh file.
Your app can read the command line parameters (on Mac/Linux or Windows) by
inspecting the special global variables $0, $1 etc.
The only gotcha is that on Mac, you think your app is at e.g.
/Users/yourname/Myapp
- but actually on Mac what appears to be an application "Myapp" is a bundle
(i.e. a folder with a special flag so the Finder pretends it's not), and the
path to the executable app is e.g.
/Users/yourname/Myapp.app/Contents/MacOS/Myapp
On Linux and Windows, it's where you think it is!
Ben
On 12/07/2022 15:56, Bob Sneidar via use-livecode wrote:
It seems to me that if you have an open socket to listen for commands, you
could have the chron or windows scheduler send those commands to your LC app.
Ben, some syntax would be helpful.
Bob S
On Jul 12, 2022, at 07:48 , Ben Rubinstein via use-livecode
<use-livecode@lists.runrev.com> wrote:
Hi Tim,
On 11/07/2022 12:35, Tim Selander via use-livecode wrote:
I want to have an LC app running on a computer doing nothing but watching the
time. At predetermined times, I then want it to run a command. A call to an API
on a website.
My $0.02, FWIW: it this is really all your app is doing, and the times are
every fee hours or days, rather than every few seconds, I would use the
computer's built in scheduler to invoke your app, rather than have it running
continuously and watching the time.
I have a number of things like this - LC apps which are launched by schedule.
On Windows, the Windows scheduler (I generally use a batch script which
launches the app in this case); on Mac or Linux, use cron. I find this more
reliable, easier to update etc.
Ben
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