package trace

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in-package search v0.2.0

A stub for tracing/observability, agnostic in how data is collected

Install

sha256=c5a43827bbd5521e779c8856e44f4c718dccda902d00a242b598516110ada04d

sha512=f19cb25a767ed428cb1d4a497312267524bfaaf9550caa5fc1e84809494f0b7eaf26030d95563c75dea66606fcbec1be7e34baa4cba86fc57d64bc5d5b98efd5

Events.

Each callback in a subscriber corresponds to an event, which can be for example queued somewhere or batched for further processing.

Sourcemodule Sub = Trace_subscriber

Sourcetype t =

| E_tick
| E_init of {
1. time_ns : int64;
}
| E_shutdown of {
1. time_ns : int64;
}
| E_message of {
1. tid : int;
2. msg : string;
3. time_ns : int64;
4. data : (string * Sub.user_data) list;
}
| E_define_span of {
1. tid : int;
2. name : string;
3. time_ns : int64;
4. id : Trace_core.span;
5. fun_name : string option;
6. data : (string * Sub.user_data) list;
}
| E_exit_span of {
1. id : Trace_core.span;
2. time_ns : int64;
}
| E_add_data of {
1. id : Trace_core.span;
2. data : (string * Sub.user_data) list;
}
| E_enter_manual_span of {
1. tid : int;
2. name : string;
3. time_ns : int64;
4. id : Trace_core.trace_id;
5. flavor : Sub.flavor option;
6. fun_name : string option;
7. data : (string * Sub.user_data) list;
}
| E_exit_manual_span of {
1. tid : int;
2. name : string;
3. time_ns : int64;
4. flavor : Sub.flavor option;
5. data : (string * Sub.user_data) list;
6. id : Trace_core.trace_id;
}
| E_counter of {
1. name : string;
2. tid : int;
3. time_ns : int64;
4. n : float;
}
| E_name_process of {
1. name : string;
}
| E_name_thread of {
1. tid : int;
2. name : string;
}
| E_extension_event of {
1. tid : int;
2. time_ns : int64;
3. ext : Trace_core.extension_event;
}

An event with TEF/fuchsia semantics