Hi SRFI editors,

Could you please update the SRFI-120 with attached files?

To keep discussion continue, the changes are the followings:

- Changed timer-remove! and timer-exists? to timer-task-remove! and
   timer-task-exists?
- Added which dynamic environment tasks should run.
- Added timer delta object APIs.
- Added encouragement that timers don't disturb each others execution.
- Added description for rescheduling when the task is being executed.

Cheers,

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_/_/
Takashi Kato
E-mail: xxxxxx@ymail.com