From bbf5ee8620318b15530a51fcd9258149bde83373 Mon Sep 17 00:00:00 2001 From: robacarp Date: Fri, 2 Feb 2024 23:30:59 +0000 Subject: [PATCH] deploy: 703a90a71d22c5e0495633e0af1c0b5bbd606c26 --- 404.html | 2 +- Mosquito.html | 2 +- Mosquito/Backend.html | 16 ++- Mosquito/Backend/ClassMethods.html | 10 +- Mosquito/Base.html | 8 +- Mosquito/Configuration.html | 16 ++- Mosquito/DoubleRun.html | 11 +- Mosquito/Id.html | 2 +- Mosquito/IrretrievableParameter.html | 11 +- Mosquito/Job.html | 191 +++++++++++++------------ Mosquito/Job/State.html | 22 ++- Mosquito/JobFailed.html | 11 +- Mosquito/JobRun.html | 16 ++- Mosquito/KeyBuilder.html | 8 +- Mosquito/Metadata.html | 16 ++- Mosquito/PeriodicJob.html | 41 +++++- Mosquito/PeriodicJobRun.html | 16 ++- Mosquito/Queue.html | 16 ++- Mosquito/QueuedJob.html | 41 +++++- Mosquito/RateLimiter.html | 10 +- Mosquito/RateLimiter/ClassMethods.html | 10 +- Mosquito/RedisBackend.html | 19 ++- Mosquito/Runnable.html | 10 +- Mosquito/Runnable/State.html | 22 ++- Mosquito/Runner.html | 8 +- Mosquito/Runners.html | 2 +- Mosquito/Runners/Coordinator.html | 16 ++- Mosquito/Runners/Executor.html | 22 ++- Mosquito/Runners/IdleWait.html | 10 +- Mosquito/Runners/Overseer.html | 25 +++- Mosquito/Runners/QueueList.html | 25 +++- Mosquito/Runners/RunAtMost.html | 10 +- Mosquito/ScheduledJob.html | 41 +++++- Mosquito/Scripts.html | 2 +- Mosquito/Serializers.html | 2 +- Mosquito/Serializers/Primitives.html | 10 +- Mosquito/TestBackend.html | 19 ++- Mosquito/TestBackend/EnqueuedJob.html | 19 ++- index.html | 2 +- index.json | 2 +- search-index.js | 2 +- 41 files changed, 513 insertions(+), 231 deletions(-) diff --git a/404.html b/404.html index 148f0efc..4148fd3f 100644 --- a/404.html +++ b/404.html @@ -4,7 +4,7 @@ - + diff --git a/Mosquito.html b/Mosquito.html index 1e647434..d351741e 100644 --- a/Mosquito.html +++ b/Mosquito.html @@ -4,7 +4,7 @@ - + diff --git a/Mosquito/Backend.html b/Mosquito/Backend.html index 5574403c..7725c353 100644 --- a/Mosquito/Backend.html +++ b/Mosquito/Backend.html @@ -4,7 +4,7 @@ - + @@ -421,6 +421,8 @@

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diff --git a/index.html b/index.html index 379a2c83..db695025 100644 --- a/index.html +++ b/index.html @@ -4,7 +4,7 @@ - + diff --git a/index.json b/index.json index 3ce6fbc9..00184fd5 100644 --- a/index.json +++ b/index.json @@ -1 +1 @@ -{"repository_name":"mosquito","body":"\"mosquito\"\n\n[![GitHub](https://img.shields.io/github/license/mosquito-cr/mosquito.svg?style=for-the-badge)](https://tldrlegal.com/license/mit-license)\n\n\n\nMosquito is a generic background job runner written primarily for Crystal. Significant inspiration from experience with the successes and failings many Ruby gems in this vein. Once compiled, a mosquito binary can start work in about 10 milliseconds.\n\nMosquito currently provides these features:\n\n- Delayed execution (`SendEmailJob.new(email: :welcome, address: user.email).enqueue(in: 3.minutes)`)\n- Scheduled / Periodic execution (`RunEveryHourJob.new`)\n- Job Storage in Redis\n- Automatic rescheduling of failed jobs\n- Progressively increasing delay of rescheduled failed jobs\n- Dead letter queue of jobs which have failed too many times\n- Rate limited jobs\n\nCurrent Limitations:\n- Visibility into a running job network and queue is limited. There is a working proof of concept [visualization API](https://github.com/mosquito-cr/mosquito/issues/90) and [bare-bones terminal application](https://github.com/mosquito-cr/tui-visualizer).\n\n## Project State\n\nThe Mosquito project is stable. A few folks are using Mosquito in production, and it's going okay.\n\nThere are some features which would be nice to have, but what is here is both tried and tested.\n\nIf you're using Mosquito, please [get in touch](https://github.com/mosquito-cr/mosquito/discussions) on the Discussion board or [on Crystal chat](https://crystal-lang.org/community/) with any questions, feature suggestions, or feedback.\n\n## Installation\n\nUpdate your `shard.yml` to include mosquito:\n\n```diff\ndependencies:\n+ mosquito:\n+ github: mosquito-cr/mosquito\n```\n\n## Usage\n\n### Step 1: Define a queued job\n\n```crystal\n# src/jobs/puts_job.cr\nclass PutsJob < Mosquito::QueuedJob\n param message : String\n\n def perform\n puts message\n end\nend\n```\n\n### Step 2: Trigger that job\n\n```crystal\n# src//.cr\nPutsJob.new(message: \"ohai background job\").enqueue\n```\n\n### Step 3: Run your worker to process the job\n\n```crystal\n# src/worker.cr\n\nMosquito.configure do |settings|\n settings.redis_url = ENV[\"REDIS_URL\"]\nend\n\nMosquito::Runner.start\n```\n\n```text\ncrystal run src/worker.cr\n```\n\n### Success\n\n```\n> crystal run src/worker.cr\n2017-11-06 17:07:29 - Mosquito is buzzing...\n2017-11-06 17:07:51 - Running task puts_job<...> from puts_job\n2017-11-06 17:07:51 - [PutsJob] ohai background job\n2017-11-06 17:07:51 - task puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information about queued jobs](https://mosquito-cr.github.io/manual/index.html#queued-jobs) in the manual.\n\n------\n\n## Periodic Jobs\n\nPeriodic jobs run according to a predefined period -- once an hour, etc.\n\nThis periodic job:\n```crystal\nclass PeriodicallyPutsJob < Mosquito::PeriodicJob\n run_every 1.minute\n\n def perform\n emotions = %w{happy sad angry optimistic political skeptical epuhoric}\n puts \"The time is now #{Time.local} and the wizard is feeling #{emotions.sample}\"\n end\nend\n```\n\nWould produce this output:\n```crystal\n2017-11-06 17:20:13 - Mosquito is buzzing...\n2017-11-06 17:20:13 - Queues: periodically_puts_job\n2017-11-06 17:20:13 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:20:13 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:20:13 and the wizard is feeling skeptical\n2017-11-06 17:20:13 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:21:14 - Queues: periodically_puts_job\n2017-11-06 17:21:14 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:21:14 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:21:14 and the wizard is feeling optimistic\n2017-11-06 17:21:14 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:22:15 - Queues: periodically_puts_job\n2017-11-06 17:22:15 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:22:15 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:22:15 and the wizard is feeling political\n2017-11-06 17:22:15 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information on periodic jobs](https://mosquito-cr.github.io/manual/index.html#periodic-jobs) in the manual.\n\n## Advanced usage\n\nFor more advanced topics, including [use with Lucky Framework](https://mosquito-cr.github.io/manual/lucky_framework.html), [throttling or rate limiting](https://mosquito-cr.github.io/manual/rate_limiting.html), check out the [full manual](https://mosquito-cr.github.io/manual).\n\n## Contributing\n\nContributions are welcome. Please fork the repository, commit changes on a branch, and then open a pull request.\n\n### Crystal Versions\n\nMosquito aims to be compatible with the latest Crystal release, and the [latest patch for all post-1.0 minor crystal versions](https://github.com/mosquito-cr/mosquito/blob/master/.github/workflows/ci.yml#L17).\n\nFor development purposes [you're encouraged to stay in sync with `.tool-versions`](https://github.com/mosquito-cr/mosquito/blob/master/.tool-versions).\n\n### Testing\n\nThis repository uses [minitest](https://github.com/ysbaddaden/minitest.cr) for testing. As a result, `crystal spec` doesn't do anything helpful. Do this instead:\n\n```\nmake test\n```\n\nIn lieu of `crystal spec` bells and whistles, Minitest provides a nice alternative to [running one test at a time instead of the whole suite](https://github.com/ysbaddaden/minitest.cr/pull/31).\n","program":{"html_id":"mosquito/toplevel","path":"toplevel.html","kind":"module","full_name":"Top Level Namespace","name":"Top Level 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Storage hash for rate limit data.

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Configure the rescheduler to always retry if a job is rate limited.

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Resets the run count and logs the start of window.

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When does the current rate limit window expire? Returns nil if the window is already expired.

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Calculates the start of the rate limit window.

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Resolves the key used to index the metadata store for this test.

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Statistics about the rate limiter, including both the configuration parameters and the run counts.

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Configures rate limiting for this job.

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[value])"}}],"constructors":[{"html_id":"new(name:String|Symbol)-class-method","name":"new","abstract":false,"args":[{"name":"name","external_name":"name","restriction":"String | Symbol"}],"args_string":"(name : String | Symbol)","args_html":"(name : String | Symbol)","location":{"filename":"src/mosquito/redis_backend.cr","line_number":70,"url":null},"def":{"name":"new","args":[{"name":"name","external_name":"name","restriction":"String | Symbol"}],"visibility":"Public","body":"_ = allocate\n_.initialize(name)\nif _.responds_to?(:finalize)\n ::GC.add_finalizer(_)\nend\n_\n"}}],"instance_methods":[{"html_id":"dequeue:JobRun|Nil-instance-method","name":"dequeue","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":181,"url":null},"def":{"name":"dequeue","return_type":"JobRun | ::Nil","visibility":"Public","body":"if id = redis.lmove(waiting_q, pending_q, :right, :left)\n 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|__arg6|\n __arg6.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg7|\n __arg7.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for dead\")\n end\n end\nend\n"}},{"html_id":"dump_pending_q:Array(String)-instance-method","name":"dump_pending_q","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":216,"url":null},"def":{"name":"dump_pending_q","return_type":"Array(String)","visibility":"Public","body":"key = pending_q\ntype = redis.type(key)\nif type == \"list\"\n ((redis.lrange(key, \"0\", \"-1\")).as(Array(Redis::Value))).map() do |__arg4|\n __arg4.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg5|\n __arg5.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for pending\")\n end\n end\nend\n"}},{"html_id":"dump_scheduled_q:Array(String)-instance-method","name":"dump_scheduled_q","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":216,"url":null},"def":{"name":"dump_scheduled_q","return_type":"Array(String)","visibility":"Public","body":"key = scheduled_q\ntype = redis.type(key)\nif type == \"list\"\n ((redis.lrange(key, \"0\", \"-1\")).as(Array(Redis::Value))).map() do |__arg2|\n __arg2.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg3|\n __arg3.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for scheduled\")\n end\n 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from queue.cr

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JobRun)","location":{"filename":"src/mosquito/redis_backend.cr","line_number":187,"url":null},"def":{"name":"finish","args":[{"name":"job_run","external_name":"job_run","restriction":"JobRun"}],"visibility":"Public","body":"redis.lrem(pending_q, 0, job_run.id)"}},{"html_id":"flush:Nil-instance-method","name":"flush","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":195,"url":null},"def":{"name":"flush","return_type":"Nil","visibility":"Public","body":"redis.del(waiting_q, pending_q, scheduled_q, 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abstract the details of\nspawning a thread, running a loop, and shutting down when asked.\n\nA service which manages a Runnable might look like this:\n\n```crystal\nrunnable = MyRunnable.new\n\n# This will spawn and return immediately.\nrunnable.start\n\nputs runnable.state # => State::Working\n\n# Some time later...\nshould_be_stopped = runnable.stop has_stopped =\nshould_be_stopped.receive\n```\n\n\n## Implementing a Runnable\n\nA runnable implementation needs to implement only two methods: #each_run\nand #runnable_name. In addition, pre_run and post_run are available for\nsetup and teardown.\n\nRunnable state is managed automatically through startup and shutdown, but\nwithin each_run it can be manually altered with `#state=`.\n\n### Example\n\n```crystal\nclass MyRunnable\n include Mosquito::Runnable\n\n # Optional\n def pre_run\n puts \"my runnable is starting\"\n end\n\n def each_run\n puts \"my runnable is running\"\n end\n\n # Optional\n def post_run\n puts \"my runnable has stopped\"\n end\n\n def runnable_name\n \"MyRunnable\"\n end\nend\n```\n\nImplementation details about what work should be done in the spawned fiber\nare placed in #each_run.\n","summary":"

Runnable implements a general purpose spawn/loop which carries a state enum.

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Implementation of what this Runnable should do on each cycle.

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After #run has been called this holds a reference to the Fiber which is used to check that the fiber is still running.

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Available to hook any teardown logic after the run loop.

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Available to hook a one time setup before the run loop.

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Start the Runnable, and capture the fiber to a property.

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Used to print a pretty name for logging.

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Tracks the state of this runnable.

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Request that the next time the run loop cycles it should exit instead.

","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":145,"url":null},"def":{"name":"stop","return_type":"Channel(Bool)","visibility":"Public","body":"if state.running?\n self.state = State::Stopping\nend\nnotifier = Channel(Bool).new\nspawn do\n start = Time.utc\n while state.stopping? && (Time.utc - start) < 25.seconds\n Fiber.yield\n end\n notifier.send(state.finished?)\n Log.info do\n runnable_name + \" has stopped\"\n end\nend\nnotifier\n"}}],"types":[{"html_id":"mosquito/Mosquito/Runnable/State","path":"Mosquito/Runnable/State.html","kind":"enum","full_name":"Mosquito::Runnable::State","name":"State","abstract":false,"ancestors":[{"html_id":"mosquito/Enum","kind":"struct","full_name":"Enum","name":"Enum"},{"html_id":"mosquito/Comparable","kind":"module","full_name":"Comparable","name":"Comparable"},{"html_id":"mosquito/Value","kind":"struct","full_name":"Value","name":"Value"},{"html_id":"mosquito/Object","kind":"class","full_name":"Object","name":"Object"}],"locations":[{"filename":"src/mosquito/runnable.cr","line_number":65,"url":null}],"repository_name":"mosquito","program":false,"enum":true,"alias":false,"const":false,"constants":[{"id":"Starting","name":"Starting","value":"0"},{"id":"Working","name":"Working","value":"1"},{"id":"Idle","name":"Idle","value":"2"},{"id":"Stopping","name":"Stopping","value":"3"},{"id":"Finished","name":"Finished","value":"4"}],"namespace":{"html_id":"mosquito/Mosquito/Runnable","kind":"module","full_name":"Mosquito::Runnable","name":"Runnable"},"instance_methods":[{"html_id":"finished?-instance-method","name":"finished?","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":70,"url":null},"def":{"name":"finished?","visibility":"Public","body":"self == Finished"}},{"html_id":"idle?-instance-method","name":"idle?","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":68,"url":null},"def":{"name":"idle?","visibility":"Public","body":"self == Idle"}},{"html_id":"running?-instance-method","name":"running?","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":72,"url":null},"def":{"name":"running?","visibility":"Public","body":"(starting? || working?) || idle?"}},{"html_id":"started?-instance-method","name":"started?","doc":"ie, not starting","summary":"

ie, not starting

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This singleton class serves as a shorthand for starting and managing an Overseer.

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Start the mosquito runner.

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Significant inspiration from experience with the successes and failings many Ruby gems in this vein. Once compiled, a mosquito binary can start work in about 10 milliseconds.\n\nMosquito currently provides these features:\n\n- Delayed execution (`SendEmailJob.new(email: :welcome, address: user.email).enqueue(in: 3.minutes)`)\n- Scheduled / Periodic execution (`RunEveryHourJob.new`)\n- Job Storage in Redis\n- Automatic rescheduling of failed jobs\n- Progressively increasing delay of rescheduled failed jobs\n- Dead letter queue of jobs which have failed too many times\n- Rate limited jobs\n\nCurrent Limitations:\n- Visibility into a running job network and queue is limited. There is a working proof of concept [visualization API](https://github.com/mosquito-cr/mosquito/issues/90) and [bare-bones terminal application](https://github.com/mosquito-cr/tui-visualizer).\n\n## Project State\n\nThe Mosquito project is stable. A few folks are using Mosquito in production, and it's going okay.\n\nThere are some features which would be nice to have, but what is here is both tried and tested.\n\nIf you're using Mosquito, please [get in touch](https://github.com/mosquito-cr/mosquito/discussions) on the Discussion board or [on Crystal chat](https://crystal-lang.org/community/) with any questions, feature suggestions, or feedback.\n\n## Installation\n\nUpdate your `shard.yml` to include mosquito:\n\n```diff\ndependencies:\n+ mosquito:\n+ github: mosquito-cr/mosquito\n```\n\n## Usage\n\n### Step 1: Define a queued job\n\n```crystal\n# src/jobs/puts_job.cr\nclass PutsJob < Mosquito::QueuedJob\n param message : String\n\n def perform\n puts message\n end\nend\n```\n\n### Step 2: Trigger that job\n\n```crystal\n# src//.cr\nPutsJob.new(message: \"ohai background job\").enqueue\n```\n\n### Step 3: Run your worker to process the job\n\n```crystal\n# src/worker.cr\n\nMosquito.configure do |settings|\n settings.redis_url = ENV[\"REDIS_URL\"]\nend\n\nMosquito::Runner.start\n```\n\n```text\ncrystal run src/worker.cr\n```\n\n### Success\n\n```\n> crystal run src/worker.cr\n2017-11-06 17:07:29 - Mosquito is buzzing...\n2017-11-06 17:07:51 - Running task puts_job<...> from puts_job\n2017-11-06 17:07:51 - [PutsJob] ohai background job\n2017-11-06 17:07:51 - task puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information about queued jobs](https://mosquito-cr.github.io/manual/index.html#queued-jobs) in the manual.\n\n------\n\n## Periodic Jobs\n\nPeriodic jobs run according to a predefined period -- once an hour, etc.\n\nThis periodic job:\n```crystal\nclass PeriodicallyPutsJob < Mosquito::PeriodicJob\n run_every 1.minute\n\n def perform\n emotions = %w{happy sad angry optimistic political skeptical epuhoric}\n puts \"The time is now #{Time.local} and the wizard is feeling #{emotions.sample}\"\n end\nend\n```\n\nWould produce this output:\n```crystal\n2017-11-06 17:20:13 - Mosquito is buzzing...\n2017-11-06 17:20:13 - Queues: periodically_puts_job\n2017-11-06 17:20:13 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:20:13 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:20:13 and the wizard is feeling skeptical\n2017-11-06 17:20:13 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:21:14 - Queues: periodically_puts_job\n2017-11-06 17:21:14 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:21:14 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:21:14 and the wizard is feeling optimistic\n2017-11-06 17:21:14 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:22:15 - Queues: periodically_puts_job\n2017-11-06 17:22:15 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:22:15 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:22:15 and the wizard is feeling political\n2017-11-06 17:22:15 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information on periodic jobs](https://mosquito-cr.github.io/manual/index.html#periodic-jobs) in the manual.\n\n## Advanced usage\n\nFor more advanced topics, including [use with Lucky Framework](https://mosquito-cr.github.io/manual/lucky_framework.html), [throttling or rate limiting](https://mosquito-cr.github.io/manual/rate_limiting.html), check out the [full manual](https://mosquito-cr.github.io/manual).\n\n## Contributing\n\nContributions are welcome. 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|__arg6|\n __arg6.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg7|\n __arg7.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for dead\")\n end\n end\nend\n"}},{"html_id":"dump_pending_q:Array(String)-instance-method","name":"dump_pending_q","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":216,"url":null},"def":{"name":"dump_pending_q","return_type":"Array(String)","visibility":"Public","body":"key = pending_q\ntype = redis.type(key)\nif type == \"list\"\n ((redis.lrange(key, \"0\", \"-1\")).as(Array(Redis::Value))).map() do |__arg4|\n __arg4.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg5|\n __arg5.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for pending\")\n end\n 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Start the Runnable, and capture the fiber to a property.

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Tracks the state of this runnable.

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Request that the next time the run loop cycles it should exit instead.

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ie, not starting

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This singleton class serves as a shorthand for starting and managing an Overseer.

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Start the mosquito runner.

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Request the mosquito runner stop.

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written primarily for Crystal. Significant inspiration from experience with the successes and failings many Ruby gems in this vein. Once compiled, a mosquito binary can start work in about 10 milliseconds.\n\nMosquito currently provides these features:\n\n- Delayed execution (`SendEmailJob.new(email: :welcome, address: user.email).enqueue(in: 3.minutes)`)\n- Scheduled / Periodic execution (`RunEveryHourJob.new`)\n- Job Storage in Redis\n- Automatic rescheduling of failed jobs\n- Progressively increasing delay of rescheduled failed jobs\n- Dead letter queue of jobs which have failed too many times\n- Rate limited jobs\n\nCurrent Limitations:\n- Visibility into a running job network and queue is limited. There is a working proof of concept [visualization API](https://github.com/mosquito-cr/mosquito/issues/90) and [bare-bones terminal application](https://github.com/mosquito-cr/tui-visualizer).\n\n## Project State\n\nThe Mosquito project is stable. A few folks are using Mosquito in production, and it's going okay.\n\nThere are some features which would be nice to have, but what is here is both tried and tested.\n\nIf you're using Mosquito, please [get in touch](https://github.com/mosquito-cr/mosquito/discussions) on the Discussion board or [on Crystal chat](https://crystal-lang.org/community/) with any questions, feature suggestions, or feedback.\n\n## Installation\n\nUpdate your `shard.yml` to include mosquito:\n\n```diff\ndependencies:\n+ mosquito:\n+ github: mosquito-cr/mosquito\n```\n\n## Usage\n\n### Step 1: Define a queued job\n\n```crystal\n# src/jobs/puts_job.cr\nclass PutsJob < Mosquito::QueuedJob\n param message : String\n\n def perform\n puts message\n end\nend\n```\n\n### Step 2: Trigger that job\n\n```crystal\n# src//.cr\nPutsJob.new(message: \"ohai background job\").enqueue\n```\n\n### Step 3: Run your worker to process the job\n\n```crystal\n# src/worker.cr\n\nMosquito.configure do |settings|\n settings.redis_url = ENV[\"REDIS_URL\"]\nend\n\nMosquito::Runner.start\n```\n\n```text\ncrystal run src/worker.cr\n```\n\n### Success\n\n```\n> crystal run src/worker.cr\n2017-11-06 17:07:29 - Mosquito is buzzing...\n2017-11-06 17:07:51 - Running task puts_job<...> from puts_job\n2017-11-06 17:07:51 - [PutsJob] ohai background job\n2017-11-06 17:07:51 - task puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information about queued jobs](https://mosquito-cr.github.io/manual/index.html#queued-jobs) in the manual.\n\n------\n\n## Periodic Jobs\n\nPeriodic jobs run according to a predefined period -- once an hour, etc.\n\nThis periodic job:\n```crystal\nclass PeriodicallyPutsJob < Mosquito::PeriodicJob\n run_every 1.minute\n\n def perform\n emotions = %w{happy sad angry optimistic political skeptical epuhoric}\n puts \"The time is now #{Time.local} and the wizard is feeling #{emotions.sample}\"\n end\nend\n```\n\nWould produce this output:\n```crystal\n2017-11-06 17:20:13 - Mosquito is buzzing...\n2017-11-06 17:20:13 - Queues: periodically_puts_job\n2017-11-06 17:20:13 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:20:13 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:20:13 and the wizard is feeling skeptical\n2017-11-06 17:20:13 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:21:14 - Queues: periodically_puts_job\n2017-11-06 17:21:14 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:21:14 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:21:14 and the wizard is feeling optimistic\n2017-11-06 17:21:14 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:22:15 - Queues: periodically_puts_job\n2017-11-06 17:22:15 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:22:15 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:22:15 and the wizard is feeling political\n2017-11-06 17:22:15 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information on periodic jobs](https://mosquito-cr.github.io/manual/index.html#periodic-jobs) in the manual.\n\n## Advanced usage\n\nFor more advanced topics, including [use with Lucky Framework](https://mosquito-cr.github.io/manual/lucky_framework.html), [throttling or rate limiting](https://mosquito-cr.github.io/manual/rate_limiting.html), check out the [full manual](https://mosquito-cr.github.io/manual).\n\n## Contributing\n\nContributions are welcome. Please fork the repository, commit changes on a branch, and then open a pull request.\n\n### Crystal Versions\n\nMosquito aims to be compatible with the latest Crystal release, and the [latest patch for all post-1.0 minor crystal versions](https://github.com/mosquito-cr/mosquito/blob/master/.github/workflows/ci.yml#L17).\n\nFor development purposes [you're encouraged to stay in sync with `.tool-versions`](https://github.com/mosquito-cr/mosquito/blob/master/.tool-versions).\n\n### Testing\n\nThis repository uses [minitest](https://github.com/ysbaddaden/minitest.cr) for testing. As a result, `crystal spec` doesn't do anything helpful. 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Storage hash for rate limit data.

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Configure the rescheduler to always retry if a job is rate limited.

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Resets the run count and logs the start of window.

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When does the current rate limit window expire? Returns nil if the window is already expired.

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Calculates the start of the rate limit window.

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Resolves the key used to index the metadata store for this test.

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Statistics about the rate limiter, including both the configuration parameters and the run counts.

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Configures rate limiting for this job.

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[value])"}}],"constructors":[{"html_id":"new(name:String|Symbol)-class-method","name":"new","abstract":false,"args":[{"name":"name","external_name":"name","restriction":"String | Symbol"}],"args_string":"(name : String | Symbol)","args_html":"(name : String | Symbol)","location":{"filename":"src/mosquito/redis_backend.cr","line_number":70,"url":null},"def":{"name":"new","args":[{"name":"name","external_name":"name","restriction":"String | Symbol"}],"visibility":"Public","body":"_ = allocate\n_.initialize(name)\nif _.responds_to?(:finalize)\n ::GC.add_finalizer(_)\nend\n_\n"}}],"instance_methods":[{"html_id":"dequeue:JobRun|Nil-instance-method","name":"dequeue","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":181,"url":null},"def":{"name":"dequeue","return_type":"JobRun | ::Nil","visibility":"Public","body":"if id = redis.lmove(waiting_q, pending_q, :right, :left)\n 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|__arg6|\n __arg6.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg7|\n __arg7.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for dead\")\n end\n end\nend\n"}},{"html_id":"dump_pending_q:Array(String)-instance-method","name":"dump_pending_q","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":216,"url":null},"def":{"name":"dump_pending_q","return_type":"Array(String)","visibility":"Public","body":"key = pending_q\ntype = redis.type(key)\nif type == \"list\"\n ((redis.lrange(key, \"0\", \"-1\")).as(Array(Redis::Value))).map() do |__arg4|\n __arg4.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg5|\n __arg5.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for pending\")\n end\n end\nend\n"}},{"html_id":"dump_scheduled_q:Array(String)-instance-method","name":"dump_scheduled_q","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":216,"url":null},"def":{"name":"dump_scheduled_q","return_type":"Array(String)","visibility":"Public","body":"key = scheduled_q\ntype = redis.type(key)\nif type == \"list\"\n ((redis.lrange(key, \"0\", \"-1\")).as(Array(Redis::Value))).map() do |__arg2|\n __arg2.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg3|\n __arg3.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for scheduled\")\n end\n 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from queue.cr

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JobRun)","location":{"filename":"src/mosquito/redis_backend.cr","line_number":187,"url":null},"def":{"name":"finish","args":[{"name":"job_run","external_name":"job_run","restriction":"JobRun"}],"visibility":"Public","body":"redis.lrem(pending_q, 0, job_run.id)"}},{"html_id":"flush:Nil-instance-method","name":"flush","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":195,"url":null},"def":{"name":"flush","return_type":"Nil","visibility":"Public","body":"redis.del(waiting_q, pending_q, scheduled_q, 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abstract the details of\nspawning a thread, running a loop, and shutting down when asked.\n\nA service which manages a Runnable might look like this:\n\n```crystal\nrunnable = MyRunnable.new\n\n# This will spawn and return immediately.\nrunnable.start\n\nputs runnable.state # => State::Working\n\n# Some time later...\nshould_be_stopped = runnable.stop has_stopped =\nshould_be_stopped.receive\n```\n\n\n## Implementing a Runnable\n\nA runnable implementation needs to implement only two methods: #each_run\nand #runnable_name. In addition, pre_run and post_run are available for\nsetup and teardown.\n\nRunnable state is managed automatically through startup and shutdown, but\nwithin each_run it can be manually altered with `#state=`.\n\n### Example\n\n```crystal\nclass MyRunnable\n include Mosquito::Runnable\n\n # Optional\n def pre_run\n puts \"my runnable is starting\"\n end\n\n def each_run\n puts \"my runnable is running\"\n end\n\n # Optional\n def post_run\n puts \"my runnable has stopped\"\n end\n\n def runnable_name\n \"MyRunnable\"\n end\nend\n```\n\nImplementation details about what work should be done in the spawned fiber\nare placed in #each_run.\n","summary":"

Runnable implements a general purpose spawn/loop which carries a state enum.

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Implementation of what this Runnable should do on each cycle.

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After #run has been called this holds a reference to the Fiber which is used to check that the fiber is still running.

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Available to hook any teardown logic after the run loop.

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Available to hook a one time setup before the run loop.

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Start the Runnable, and capture the fiber to a property.

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Used to print a pretty name for logging.

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Tracks the state of this runnable.

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Request that the next time the run loop cycles it should exit instead.

","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":145,"url":null},"def":{"name":"stop","return_type":"Channel(Bool)","visibility":"Public","body":"if state.running?\n self.state = State::Stopping\nend\nnotifier = Channel(Bool).new\nspawn do\n start = Time.utc\n while state.stopping? && (Time.utc - start) < 25.seconds\n Fiber.yield\n end\n notifier.send(state.finished?)\n Log.info do\n runnable_name + \" has stopped\"\n end\nend\nnotifier\n"}}],"types":[{"html_id":"mosquito/Mosquito/Runnable/State","path":"Mosquito/Runnable/State.html","kind":"enum","full_name":"Mosquito::Runnable::State","name":"State","abstract":false,"ancestors":[{"html_id":"mosquito/Enum","kind":"struct","full_name":"Enum","name":"Enum"},{"html_id":"mosquito/Comparable","kind":"module","full_name":"Comparable","name":"Comparable"},{"html_id":"mosquito/Value","kind":"struct","full_name":"Value","name":"Value"},{"html_id":"mosquito/Object","kind":"class","full_name":"Object","name":"Object"}],"locations":[{"filename":"src/mosquito/runnable.cr","line_number":65,"url":null}],"repository_name":"mosquito","program":false,"enum":true,"alias":false,"const":false,"constants":[{"id":"Starting","name":"Starting","value":"0"},{"id":"Working","name":"Working","value":"1"},{"id":"Idle","name":"Idle","value":"2"},{"id":"Stopping","name":"Stopping","value":"3"},{"id":"Finished","name":"Finished","value":"4"}],"namespace":{"html_id":"mosquito/Mosquito/Runnable","kind":"module","full_name":"Mosquito::Runnable","name":"Runnable"},"instance_methods":[{"html_id":"finished?-instance-method","name":"finished?","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":70,"url":null},"def":{"name":"finished?","visibility":"Public","body":"self == Finished"}},{"html_id":"idle?-instance-method","name":"idle?","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":68,"url":null},"def":{"name":"idle?","visibility":"Public","body":"self == Idle"}},{"html_id":"running?-instance-method","name":"running?","abstract":false,"location":{"filename":"src/mosquito/runnable.cr","line_number":72,"url":null},"def":{"name":"running?","visibility":"Public","body":"(starting? || working?) || idle?"}},{"html_id":"started?-instance-method","name":"started?","doc":"ie, not starting","summary":"

ie, not starting

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This singleton class serves as a shorthand for starting and managing an Overseer.

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Start the mosquito runner.

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Significant inspiration from experience with the successes and failings many Ruby gems in this vein. Once compiled, a mosquito binary can start work in about 10 milliseconds.\n\nMosquito currently provides these features:\n\n- Delayed execution (`SendEmailJob.new(email: :welcome, address: user.email).enqueue(in: 3.minutes)`)\n- Scheduled / Periodic execution (`RunEveryHourJob.new`)\n- Job Storage in Redis\n- Automatic rescheduling of failed jobs\n- Progressively increasing delay of rescheduled failed jobs\n- Dead letter queue of jobs which have failed too many times\n- Rate limited jobs\n\nCurrent Limitations:\n- Visibility into a running job network and queue is limited. There is a working proof of concept [visualization API](https://github.com/mosquito-cr/mosquito/issues/90) and [bare-bones terminal application](https://github.com/mosquito-cr/tui-visualizer).\n\n## Project State\n\nThe Mosquito project is stable. A few folks are using Mosquito in production, and it's going okay.\n\nThere are some features which would be nice to have, but what is here is both tried and tested.\n\nIf you're using Mosquito, please [get in touch](https://github.com/mosquito-cr/mosquito/discussions) on the Discussion board or [on Crystal chat](https://crystal-lang.org/community/) with any questions, feature suggestions, or feedback.\n\n## Installation\n\nUpdate your `shard.yml` to include mosquito:\n\n```diff\ndependencies:\n+ mosquito:\n+ github: mosquito-cr/mosquito\n```\n\n## Usage\n\n### Step 1: Define a queued job\n\n```crystal\n# src/jobs/puts_job.cr\nclass PutsJob < Mosquito::QueuedJob\n param message : String\n\n def perform\n puts message\n end\nend\n```\n\n### Step 2: Trigger that job\n\n```crystal\n# src//.cr\nPutsJob.new(message: \"ohai background job\").enqueue\n```\n\n### Step 3: Run your worker to process the job\n\n```crystal\n# src/worker.cr\n\nMosquito.configure do |settings|\n settings.redis_url = ENV[\"REDIS_URL\"]\nend\n\nMosquito::Runner.start\n```\n\n```text\ncrystal run src/worker.cr\n```\n\n### Success\n\n```\n> crystal run src/worker.cr\n2017-11-06 17:07:29 - Mosquito is buzzing...\n2017-11-06 17:07:51 - Running task puts_job<...> from puts_job\n2017-11-06 17:07:51 - [PutsJob] ohai background job\n2017-11-06 17:07:51 - task puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information about queued jobs](https://mosquito-cr.github.io/manual/index.html#queued-jobs) in the manual.\n\n------\n\n## Periodic Jobs\n\nPeriodic jobs run according to a predefined period -- once an hour, etc.\n\nThis periodic job:\n```crystal\nclass PeriodicallyPutsJob < Mosquito::PeriodicJob\n run_every 1.minute\n\n def perform\n emotions = %w{happy sad angry optimistic political skeptical epuhoric}\n puts \"The time is now #{Time.local} and the wizard is feeling #{emotions.sample}\"\n end\nend\n```\n\nWould produce this output:\n```crystal\n2017-11-06 17:20:13 - Mosquito is buzzing...\n2017-11-06 17:20:13 - Queues: periodically_puts_job\n2017-11-06 17:20:13 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:20:13 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:20:13 and the wizard is feeling skeptical\n2017-11-06 17:20:13 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:21:14 - Queues: periodically_puts_job\n2017-11-06 17:21:14 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:21:14 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:21:14 and the wizard is feeling optimistic\n2017-11-06 17:21:14 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n2017-11-06 17:22:15 - Queues: periodically_puts_job\n2017-11-06 17:22:15 - Running task periodically_puts_job<...> from periodically_puts_job\n2017-11-06 17:22:15 - [PeriodicallyPutsJob] The time is now 2017-11-06 17:22:15 and the wizard is feeling political\n2017-11-06 17:22:15 - task periodically_puts_job<...> succeeded, took 0.0 seconds\n```\n\n[More information on periodic jobs](https://mosquito-cr.github.io/manual/index.html#periodic-jobs) in the manual.\n\n## Advanced usage\n\nFor more advanced topics, including [use with Lucky Framework](https://mosquito-cr.github.io/manual/lucky_framework.html), [throttling or rate limiting](https://mosquito-cr.github.io/manual/rate_limiting.html), check out the [full manual](https://mosquito-cr.github.io/manual).\n\n## Contributing\n\nContributions are welcome. 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|__arg6|\n __arg6.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg7|\n __arg7.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for dead\")\n end\n end\nend\n"}},{"html_id":"dump_pending_q:Array(String)-instance-method","name":"dump_pending_q","abstract":false,"location":{"filename":"src/mosquito/redis_backend.cr","line_number":216,"url":null},"def":{"name":"dump_pending_q","return_type":"Array(String)","visibility":"Public","body":"key = pending_q\ntype = redis.type(key)\nif type == \"list\"\n ((redis.lrange(key, \"0\", \"-1\")).as(Array(Redis::Value))).map() do |__arg4|\n __arg4.as(String)\n end\nelse\n if type == \"zset\"\n ((redis.zrange(key, 0, -1)).as(Array(Redis::Value))).map() do |__arg5|\n __arg5.as(String)\n end\n else\n if type == \"none\"\n [] of String\n else\n raise(\"don't know how to dump a #{type} for pending\")\n end\n 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Start the Runnable, and capture the fiber to a property.

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Tracks the state of this runnable.

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Request that the next time the run loop cycles it should exit instead.

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ie, not starting

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This singleton class serves as a shorthand for starting and managing an Overseer.

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Start the mosquito runner.

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Request the mosquito runner stop.

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