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1ab217ac40
Assume the embedder provides static strings for event labels. TEST=Instruments Bug: https://github.com/dart-lang/sdk/issues/49178 Change-Id: I40aa4996fed2b1230da64d182e6f172f60480fdf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251145 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
// Copyright (c) 2020, 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_MACOS) && defined(SUPPORT_TIMELINE)
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#include "vm/log.h"
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#include "vm/timeline.h"
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namespace dart {
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// Only available on iOS 12.0, macOS 10.14 or above
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TimelineEventMacosRecorder::TimelineEventMacosRecorder()
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: TimelineEventPlatformRecorder() {
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Timeline::set_recorder_discards_clock_values(true);
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}
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TimelineEventMacosRecorder::~TimelineEventMacosRecorder() {}
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void TimelineEventMacosRecorder::OnEvent(TimelineEvent* event) {
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if (event == NULL) {
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return;
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}
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#if defined(DART_HOST_OS_SUPPORTS_SIGNPOST)
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os_log_t log = event->stream_->macos_log();
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if (!os_signpost_enabled(log)) {
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return;
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}
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const char* label = event->label();
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bool is_static_label = event->stream_->has_static_labels();
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uint8_t _Alignas(16) buffer[64];
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buffer[0] = 0;
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switch (event->event_type()) {
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case TimelineEvent::kInstant:
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if (is_static_label) {
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_os_signpost_emit_with_name_impl(&__dso_handle, log, OS_SIGNPOST_EVENT,
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OS_SIGNPOST_ID_EXCLUSIVE, label, "",
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buffer, sizeof(buffer));
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} else {
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os_signpost_event_emit(log, OS_SIGNPOST_ID_EXCLUSIVE, "Event", "%s",
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label);
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}
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break;
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case TimelineEvent::kBegin:
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case TimelineEvent::kAsyncBegin:
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if (is_static_label) {
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_os_signpost_emit_with_name_impl(
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&__dso_handle, log, OS_SIGNPOST_INTERVAL_BEGIN, event->Id(), label,
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"", buffer, sizeof(buffer));
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} else {
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os_signpost_interval_begin(log, event->Id(), "Event", "%s", label);
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}
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break;
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case TimelineEvent::kEnd:
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case TimelineEvent::kAsyncEnd:
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if (is_static_label) {
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_os_signpost_emit_with_name_impl(&__dso_handle, log,
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OS_SIGNPOST_INTERVAL_END, event->Id(),
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label, "", buffer, sizeof(buffer));
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} else {
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os_signpost_interval_end(log, event->Id(), "Event");
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}
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break;
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case TimelineEvent::kCounter:
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os_signpost_event_emit(log, OS_SIGNPOST_ID_EXCLUSIVE, "Counter", "%s=%s",
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label, event->arguments()[0].value);
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break;
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default:
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break;
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}
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#endif // defined(DART_HOST_OS_SUPPORTS_SIGNPOST)
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}
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} // namespace dart
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#endif // defined(DART_HOST_OS_MACOS) && defined(SUPPORT_TIMELINE)
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