Class: RubynCode::Background::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/rubyn_code/background/worker.rb

Overview

Runs shell commands in background threads with configurable timeouts. Thread-safe job tracking with a hard cap on concurrency.

Constant Summary collapse

MAX_CONCURRENT = 
5

Instance Method Summary collapse

Constructor Details

#initialize(project_root:, notifier: Notifier.new) ⇒ Worker

Returns a new instance of Worker.

Parameters:

  • project_root (String) —

    working directory for spawned commands

  • notifier (Notifier) (defaults to: Notifier.new) —

    notification queue for completed jobs



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# File 'lib/rubyn_code/background/worker.rb', line 18

def initialize(project_root:, notifier: Notifier.new)
  @project_root = File.expand_path(project_root)
  @notifier = notifier
  @jobs = {}
  @threads = {}
  @mutex = Mutex.new
end

Instance Method Details

#active_count ⇒ Integer

Returns the number of currently running jobs.

Returns:

  • (Integer) 


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# File 'lib/rubyn_code/background/worker.rb', line 78

def active_count
  @mutex.synchronize do
    @jobs.count { |_, j| j.running? }
  end
end

#drain_notifications ⇒ Array

Delegates to the notifier to drain all pending notifications.

Returns:

  • (Array) 


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# File 'lib/rubyn_code/background/worker.rb', line 71

def drain_notifications
  @notifier.drain
end

#run(command, timeout: 120) ⇒ String

Spawns a background thread to run the given command.

Parameters:

  • command (String) —

    the shell command to execute

  • timeout (Integer) (defaults to: 120) —

    timeout in seconds (default 120)

Returns:

  • (String) —

    the job ID

Raises:

  • (RuntimeError) —

    if the concurrency cap is reached



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# File 'lib/rubyn_code/background/worker.rb', line 32

def run(command, timeout: 120)
  job_id = SecureRandom.uuid

  @mutex.synchronize do
    running = @jobs.count { |_, j| j.running? }
    if running >= MAX_CONCURRENT
      raise "Concurrency limit reached (#{MAX_CONCURRENT} jobs running). Wait for a job to finish."
    end

    job = Job.new(
      id: job_id,
      command: command,
      status: :running,
      result: nil,
      started_at: Time.now,
      completed_at: nil
    )
    @jobs[job_id] = job
  end

  thread = Thread.new { execute_job(job_id, command, timeout) }
  thread.abort_on_exception = false

  @mutex.synchronize { @threads[job_id] = thread }

  job_id
end

#shutdown!(timeout: 30) ⇒ void

This method returns an undefined value.

Waits for all running threads to finish. Intended for graceful shutdown.

Parameters:

  • timeout (Integer) (defaults to: 30) —

    maximum seconds to wait per thread (default 30)



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# File 'lib/rubyn_code/background/worker.rb', line 88

def shutdown!(timeout: 30)
  threads = @mutex.synchronize { @threads.values.dup }
  threads.each { |t| t.join(timeout) }
end

#status(job_id) ⇒ Job?

Returns the current state of a job.

Parameters:

  • job_id (String)

Returns:



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# File 'lib/rubyn_code/background/worker.rb', line 64

def status(job_id)
  @mutex.synchronize { @jobs[job_id] }
end