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![Ryan Macnak](/assets/img/avatar_default.png)
Fix transposed id and timestamp. TEST=Instruments, ci Bug: https://github.com/dart-lang/sdk/issues/49178 Change-Id: I2c2650f28050b179d26e1269729727f58201a8a8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251581 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Siva Annamalai <asiva@google.com>
125 lines
5 KiB
C++
125 lines
5 KiB
C++
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if defined(DART_HOST_OS_FUCHSIA) && defined(SUPPORT_TIMELINE)
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#include <lib/trace-engine/context.h>
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#include <lib/trace-engine/instrumentation.h>
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#include <zircon/syscalls.h>
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#include "platform/utils.h"
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#include "vm/object.h"
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#include "vm/timeline.h"
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namespace dart {
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void TimelineEventFuchsiaRecorder::OnEvent(TimelineEvent* event) {
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if (event == NULL) {
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return;
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}
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TimelineStream* stream = event->stream_;
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trace_string_ref_t category;
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trace_context_t* context = trace_acquire_context_for_category_cached(
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stream->fuchsia_name(), stream->trace_site(), &category);
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if (context == NULL) {
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return;
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}
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trace_string_ref_t name;
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if (event->owns_label()) {
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// If the event owns the name, then the name will be deallocated, so
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// instruct the system trace to make a copy.
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name = trace_context_make_registered_string_copy(
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context, event->label(), strlen(event->label()));
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} else {
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// If the event doesn't own the name, then it is a string literal, and
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// the system trace can use the pointer and not a copy.
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name = trace_context_make_registered_string_literal(
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context, event->label());
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}
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trace_thread_ref_t thread;
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trace_context_register_current_thread(context, &thread);
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trace_arg_t args[TRACE_MAX_ARGS];
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const intptr_t num_args = Utils::Minimum(
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event->arguments_length(), static_cast<intptr_t>(TRACE_MAX_ARGS));
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for (intptr_t i = 0; i < num_args; i++) {
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const char* name = event->arguments()[i].name;
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const char* value = event->arguments()[i].value;
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trace_string_ref_t arg_name =
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trace_context_make_registered_string_literal(context, name);
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trace_string_ref_t arg_value =
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trace_make_inline_string_ref(value, strlen(value));
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args[i] = trace_make_arg(arg_name, trace_make_string_arg_value(arg_value));
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}
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const uint64_t time_scale = zx_ticks_per_second() / kMicrosecondsPerSecond;
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const uint64_t start_time = event->LowTime() * time_scale;
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const uint64_t end_time = event->HighTime() * time_scale;
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// TODO(zra): The functions below emit Dart's timeline events all as category
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// "dart". Instead, we could have finer-grained categories that make use of
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// the name of the timeline stream, e.g. "VM", "GC", etc.
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switch (event->event_type()) {
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case TimelineEvent::kBegin:
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trace_context_write_duration_begin_event_record(
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context, start_time, &thread, &category, &name, args, num_args);
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break;
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case TimelineEvent::kEnd:
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trace_context_write_duration_end_event_record(
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context, start_time, &thread, &category, &name, args, num_args);
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break;
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case TimelineEvent::kInstant:
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trace_context_write_instant_event_record(
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context, start_time, &thread, &category, &name, TRACE_SCOPE_THREAD,
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args, num_args);
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break;
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case TimelineEvent::kAsyncBegin:
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trace_context_write_async_begin_event_record(context, start_time, &thread,
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&category, &name,
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event->Id(), args, num_args);
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break;
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case TimelineEvent::kAsyncEnd:
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trace_context_write_async_end_event_record(context, end_time, &thread,
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&category, &name, event->Id(),
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args, num_args);
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break;
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case TimelineEvent::kAsyncInstant:
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trace_context_write_async_instant_event_record(
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context, start_time, &thread, &category, &name, event->Id(), args,
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num_args);
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break;
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case TimelineEvent::kDuration:
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trace_context_write_duration_event_record(context, start_time, end_time,
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&thread, &category, &name, args,
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num_args);
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break;
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case TimelineEvent::kFlowBegin:
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trace_context_write_flow_begin_event_record(context, start_time, &thread,
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&category, &name, event->Id(),
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args, num_args);
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break;
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case TimelineEvent::kFlowStep:
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trace_context_write_flow_step_event_record(context, start_time, &thread,
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&category, &name, event->Id(),
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args, num_args);
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break;
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case TimelineEvent::kFlowEnd:
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trace_context_write_flow_end_event_record(context, start_time, &thread,
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&category, &name, event->Id(),
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args, num_args);
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break;
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default:
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// TODO(zra): Figure out what to do with kCounter and kMetadata.
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break;
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}
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trace_release_context(context);
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}
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} // namespace dart
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#endif // defined(DART_HOST_OS_FUCHSIA) && defined(SUPPORT_TIMELINE)
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