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| author | James M Snell <jasnell@gmail.com> | 2018-04-03 18:05:33 -0700 |
|---|---|---|
| committer | James M Snell <jasnell@gmail.com> | 2018-04-17 08:30:20 -0700 |
| commit | 5c27e44488aa1c00248297204ff3484c24ff3ae7 (patch) | |
| tree | 4c061d36122bcb91028eb9d0457dfa15bc84604a /src/env.cc | |
| parent | 95fafc0254f6636b7c7546ac63599c79a7182fd9 (diff) | |
| download | android-node-v8-5c27e44488aa1c00248297204ff3484c24ff3ae7.tar.gz android-node-v8-5c27e44488aa1c00248297204ff3484c24ff3ae7.tar.bz2 android-node-v8-5c27e44488aa1c00248297204ff3484c24ff3ae7.zip | |
trace_events: adds a new trace_events api
Removes the requirement to use `--trace-events-enabled` to enable
trace events. Tracing is enabled automatically if there are any
enabled categories.
Adds a new `trace_events` module with an API for enabling/disabling
trace events at runtime without a command line flag.
```js
const trace_events = require('trace_events');
const categories = [ 'node.perf', 'node.async_hooks' ];
const tracing = trace_events.createTracing({ categories });
tracing.enable();
// do stuff
tracing.disable();
```
Multiple `Tracing` objects may exist and be enabled at any point
in time. The enabled trace event categories is the union of all
enabled `Tracing` objects and the `--trace-event-categories`
flag.
PR-URL: https://github.com/nodejs/node/pull/19803
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Diffstat (limited to 'src/env.cc')
| -rw-r--r-- | src/env.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/env.cc b/src/env.cc index 4be70036e3..1f47ea21af 100644 --- a/src/env.cc +++ b/src/env.cc @@ -3,6 +3,7 @@ #include "node_buffer.h" #include "node_platform.h" #include "node_file.h" +#include "tracing/agent.h" #include <stdio.h> #include <algorithm> @@ -87,9 +88,11 @@ void InitThreadLocalOnce() { } Environment::Environment(IsolateData* isolate_data, - Local<Context> context) + Local<Context> context, + tracing::Agent* tracing_agent) : isolate_(context->GetIsolate()), isolate_data_(isolate_data), + tracing_agent_(tracing_agent), immediate_info_(context->GetIsolate()), tick_info_(context->GetIsolate()), timer_base_(uv_now(isolate_data->event_loop())), |