Agnocast runtime tracepoints

Relationships of each Agnocast runtime trace points

erDiagram
  agnocast_publish {
    address publisher_handle
    int64_t entry_id
  }

  agnocast_create_callable {
    address callable
    int64_t entry_id
    uint64_t pid_callback_info_id
  }

  agnocast_create_timer_callable {
    address callable
    address timer_handle
  }

  agnocast_callable_start {
    address callable
  }

  agnocast_callable_end {
    address callable
  }

  agnocast_take {
    address subscription_handle
    address message
    int64_t entry_id
  }

  agnocast_publish ||--o{ agnocast_create_callable : entry_id
  agnocast_publish ||--o{ agnocast_take : entry_id
  agnocast_create_callable ||--|| agnocast_callable_start : callable
  agnocast_create_timer_callable ||--|| agnocast_callable_start : callable
  agnocast_callable_start ||--|| agnocast_callable_end : callable

In Agnocast, message passing uses entry_id to associate a publish event with the corresponding subscription callback execution. agnocast_publish is linked to agnocast_create_callable and agnocast_take via entry_id. The callable lifecycle (agnocast_callable_start / agnocast_callable_end) is tracked via callable address.

Trace point definition

agnocast:agnocast_publish

[Built-in tracepoints]

Sampled items

• void * publisher_handle
• int64_t entry_id

---

agnocast:agnocast_create_callable

[Built-in tracepoints]

Sampled items

• void * callable
• int64_t entry_id
• uint64_t pid_callback_info_id

Note

In older versions, pid_callback_info_id may be recorded as pid_ciid.

---

agnocast:agnocast_create_timer_callable

[Built-in tracepoints]

Sampled items

• void * callable
• void * timer_handle

---

agnocast:agnocast_callable_start

[Built-in tracepoints]

Sampled items

• void * callable

---

agnocast:agnocast_callable_end

[Built-in tracepoints]

Sampled items

• void * callable

---

agnocast:agnocast_take

[Built-in tracepoints]

Sampled items

• void * subscription_handle
• void * message
• int64_t entry_id