Zygo Blaxell 4021dd42ca task: queue and run exactly once per instance ...

Enable much simpler Task management:  each time a Task needs to be done
at least once in the future, simply invoke the run() method on the Task.
The Task will ensure that it only runs once, only appears in a queue
once, and will run again if a run request is made while the Task is
already running.

Make the queue policy a member of the Task rather than a method.  This
enables Tasks to reschedule themselves, possibly on the appropriate queue
if we have more than one of those some day.

This happens to make Tasks more similar to Linux kernel workers.
This similarity is coincidental, but not undesirable.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>

2019-01-07 22:48:15 -05:00

..

backtrace.h

bees: remove local cruft, throw at github

2016-11-17 12:12:13 -05:00

bencode.h

bees: remove local cruft, throw at github

2016-11-17 12:12:13 -05:00

btrfs.h

crucible: Try repairing a build failure around swap macro

2018-11-08 19:29:11 +01:00

cache.h

cache: release lock before clearing

2018-02-07 23:14:38 -05:00

chatter.h

Logging: Add log levels to output

2018-01-18 23:41:29 +01:00

cleanup.h

crucible: add cleanup class

2018-01-15 11:07:48 -05:00

crc64.h

Remove unused crc64 function

2016-12-13 12:52:26 +11:00

error.h

crucible: error: record location of exception in what() message

2018-09-14 23:49:51 -04:00

extentwalker.h

extentwalker: don't fetch absurd numbers of extents just to throw them away

2018-09-26 23:29:56 -04:00

fd.h

crucible: Allow setting a relative path option for name_fd()

2017-11-14 01:16:06 +01:00

fs.h

fs: remove thread_local storage

2018-11-08 23:55:13 -05:00

limits.h

bees: remove local cruft, throw at github

2016-11-17 12:12:13 -05:00

lockset.h

lockset: drop unused method wait_unlock

2018-01-17 22:30:06 -05:00

ntoa.h

build: OK, maybe 32-bit machines could work

2016-11-26 02:06:28 -05:00

path.h

bees: remove local cruft, throw at github

2016-11-17 12:12:13 -05:00

process.h

process: ntoa function for signals

2018-12-09 23:45:52 -05:00

progress.h

crucible: progress: drop the set() method

2018-09-14 23:49:54 -04:00

resource.h

crucible: resource: optimize map cleanup

2018-01-17 22:30:07 -05:00

string.h

bees: remove local cruft, throw at github

2016-11-17 12:12:13 -05:00

task.h

task: queue and run exactly once per instance

2019-01-07 22:48:15 -05:00

time.h

time: separate sleep time calculation from sleep_for method

2018-12-09 23:45:52 -05:00

uuid.h

bees: remove local cruft, throw at github

2016-11-17 12:12:13 -05:00

version.h

lib: add a version string

2017-01-18 22:17:02 -05:00