Class: LittleGhost::CodeMode::Javascript::Session

Inherits:
Session
  • Object
show all
Defined in:
lib/little_ghost/code_mode/javascript/session.rb

Overview

:nodoc: all

Defined Under Namespace

Classes: Deadline, ToolBatch, ToolCall

Constant Summary collapse

OBSERVATION_SECONDS = 
60
DEFAULT_OUTPUT_TOKENS = 
10_000
MAX_OUTPUT_TOKENS = 
Javascript::Client::MAX_BUFFERED_OUTPUT_BYTES / 4
MAX_PENDING_TOOL_CALLS = 
1_024
CLEANUP_TIMEOUT = 
5

Instance Method Summary collapse

Constructor Details

#initialize(broker:, client:, sandbox: nil, workspace: nil, max_concurrency: 8, wall_seconds: 3_600, observation_seconds: OBSERVATION_SECONDS, cleanup_timeout: CLEANUP_TIMEOUT, framework_prompt_scope: {}) ⇒ Session

Returns a new instance of Session.

Raises:

  • (ArgumentError) 


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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 19

def initialize(broker:, client:, sandbox: nil, workspace: nil, max_concurrency: 8,
  wall_seconds: 3_600, observation_seconds: OBSERVATION_SECONDS, cleanup_timeout: CLEANUP_TIMEOUT,
  framework_prompt_scope: {})
  @broker = broker
  @task_runner = broker.task_runner
  @client = client
  @sandbox = sandbox
  @workspace = workspace
  @framework_prompt_scope = framework_prompt_scope.freeze
  @max_concurrency = Integer(max_concurrency)
  raise ArgumentError, "max_concurrency must be positive" unless @max_concurrency.positive?
  @wall_seconds = Float(wall_seconds)
  @observation_seconds = Float(observation_seconds)
  @cleanup_timeout = Float(cleanup_timeout)
  raise ArgumentError, "wall_seconds must be positive" unless @wall_seconds.positive?
  raise ArgumentError, "observation_seconds must be positive" unless @observation_seconds.positive?
  raise ArgumentError, "cleanup_timeout must be positive" unless @cleanup_timeout.positive?
  @frames = {}
  @frames_mutex = Mutex.new
  @dispatch_counts = Hash.new(0)
  @terminating_programs = {}
  @fatal_errors = {}
  @discarded_programs = {}
  @dispatch_mutex = Mutex.new
  @dispatch_condition = ConditionVariable.new
  @queue = SizedQueue.new(MAX_PENDING_TOOL_CALLS)
  @closed = false
  @poisoned = false
  @control_mutex = Mutex.new
  @mutex = Mutex.new
  @worker = nil
  @deadline_mutex = Mutex.new
  @deadline_condition = ConditionVariable.new
  @deadlines = {}
  @pending_deadline_errors = []
end

Instance Method Details

#begin_client_termination(program_id) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 106

def begin_client_termination(program_id)
  begin_termination([program_id])
end

#close ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 70

def close
  cancel_all_deadlines
  program_ids = begin_termination
  already_closed, worker = @mutex.synchronize do
    if @closed
      [true, nil]
    else
      @closed = true
      drain_dispatch_queue
      @queue.push(:close, true)
      [false, @worker]
    end
  end
  return if already_closed

  begin
    @client.close_owner(self)
    wait_for_dispatches(program_ids)
    if worker
      begin
        worker.wait(deadline: Time.now + @cleanup_timeout)
      rescue LittleGhost::DeadlineExceededError
        raise LittleGhost::CleanupError, "Code-mode dispatch worker cleanup timed out"
      end
    end
  ensure
    @client.close
    @sandbox&.close
    @workspace&.close
    @frames_mutex.synchronize { @frames.clear }
    @current_program_id = nil
  end
  raise_pending_failure!
  raise_pending_deadline_error!
end

#enqueue_tool_calls(program_id:, calls:) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 198

def enqueue_tool_calls(program_id:, calls:)
  if !calls.is_a?(Array) || calls.length > MAX_PENDING_TOOL_CALLS
    raise LittleGhost::ProtocolError, "Code-mode program exceeded the pending tool-call limit"
  end
  batch = Array(calls).map do |call|
    raise LittleGhost::ProtocolError, "Code-mode host returned an invalid tool call" unless call.is_a?(Hash)

    ToolCall.new(
      program_id:, call_id: call.fetch("call_id"), name: call.fetch("name"),
      arguments: call.fetch("arguments")
    )
  end
  @mutex.synchronize do
    raise LittleGhost::ToolError, prompt("code_mode/feedback/closed", resource: "session") if @closed

    ensure_worker
    register_dispatch(batch)
    @queue.push(ToolBatch.new(calls: batch), true)
  end
rescue ThreadError
  batch&.calls&.each { |call| reject(call, "Code-mode tool queue is full") }
  finish_dispatch(batch&.calls)
rescue KeyError, TypeError
  raise LittleGhost::ProtocolError, "Code-mode host returned an invalid tool call"
end

#execute(source:, catalog:, frame: nil, max_output_tokens: DEFAULT_OUTPUT_TOKENS, context: nil) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 56

def execute(source:, catalog:, frame: nil, max_output_tokens: DEFAULT_OUTPUT_TOKENS, context: nil)
  with_control do
    execute_program(source:, catalog:, frame:, max_output_tokens:, context:)
  end
end

#finish_client_termination(program_id) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 110

def finish_client_termination(program_id)
  wait_for_dispatches([program_id])
end

#record_client_failure(program_id, error) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 114

def record_client_failure(program_id, error)
  @dispatch_mutex.synchronize do
    return if @discarded_programs[program_id]

    @fatal_errors[program_id] ||= fatal_error(error)
  end
end

#stop(max_output_tokens: DEFAULT_OUTPUT_TOKENS, context: nil) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 66

def stop(max_output_tokens: DEFAULT_OUTPUT_TOKENS, context: nil)
  with_control { stop_program(max_output_tokens:, context:) }
end

#wait(max_output_tokens: DEFAULT_OUTPUT_TOKENS, context: nil) ⇒ Object 



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# File 'lib/little_ghost/code_mode/javascript/session.rb', line 62

def wait(max_output_tokens: DEFAULT_OUTPUT_TOKENS, context: nil)
  with_control { wait_for_program(max_output_tokens:, context:) }
end