command
plotnamevaluectltype
filter
log_level LogLevel
metrics.dispatches uint32
metrics.rate_hz float
metrics.average_s float
metrics.max_s float
metrics.min_s float
metrics.overruns uint16
paused bool
period_s
float
poll_connection_metrics bool

Periodic Tasks

Runtime instances that are dispatched periodically (based on period_s) and can be paused (with the paused channel).

command
plotnamevaluectltype
filter
log_level LogLevel
metrics.dispatches uint32
metrics.rate_hz float
metrics.average_s float
metrics.max_s float
metrics.min_s float
metrics.overruns uint16
paused bool
period_s
float
stdout_level LogLevel
stderr_level LogLevel
state ProcessState
pid int32
exit_code int32
kill_signal Signals
uptime double

See also: sample_program.py source.

Process Tasks

Intent

Individual tasks allow control over a command-line invocation: stdout and stderr logging, stdin interaction via send_stdin <payload> command and more.

Discussion

  • get status via /proc/<pid>/stat and others
  • configurable initial kill_signal (for shutdown as well?)
  • implement remind command
  • handling shutdown + signal propagation
    • needs to be workable with shutdown behaviors/requirements of production processes (what are these? i.e. Minecraft or other game servers)

Periodic Tasks

Runtime instances that are dispatched periodically (based on period_s) and can be paused (with the paused channel).

command
plotnamevaluectltype
filter
log_level LogLevel
time_ms float
frame_period_ms float
num_connections uint8
metrics.json.tx.messages uint32
metrics.json.tx.messages_rate float
metrics.json.tx.bytes uint64
metrics.json.tx.kbps float
metrics.json.rx.messages uint32
metrics.json.rx.messages_rate float
metrics.json.rx.bytes uint64
metrics.json.rx.kbps float

Instance Configuration

{
    "psutil": false
}

Runtime Structures

Containers for primitives that an application can update to trigger events and evaluate business logic.