dart-sdk/runtime/vm/timeline_win.cc
Ryan Macnak 3d21a46b72 Limit preserialized JSON for timeline events from Dart code to the arguments.
Avoids string copies in C++ and map copies in Dart.

Also remove some vestiages of removed feature that allowed an embedder to add pre-encoded events to the timeline.

Change-Id: I962a67093ba461c991d9169b0391c44af1d489db
Bug: https://github.com/dart-lang/sdk/issues/30787
Reviewed-on: https://dart-review.googlesource.com/6762
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
2017-09-19 23:29:55 +00:00

52 lines
1.5 KiB
C++

// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/globals.h"
#if defined(HOST_OS_WINDOWS) && !defined(PRODUCT)
#include "vm/timeline.h"
namespace dart {
TimelineEventPlatformRecorder::TimelineEventPlatformRecorder(intptr_t capacity)
: TimelineEventFixedBufferRecorder(capacity) {
OS::PrintErr(
"Warning: The systrace timeline recorder is equivalent to the"
"ring recorder on this platform.");
}
TimelineEventPlatformRecorder::~TimelineEventPlatformRecorder() {}
TimelineEventPlatformRecorder*
TimelineEventPlatformRecorder::CreatePlatformRecorder(intptr_t capacity) {
return new TimelineEventPlatformRecorder(capacity);
}
const char* TimelineEventPlatformRecorder::name() const {
return "Systrace";
}
TimelineEventBlock* TimelineEventPlatformRecorder::GetNewBlockLocked() {
// TODO(johnmccutchan): This function should only hand out blocks
// which have been marked as finished.
if (block_cursor_ == num_blocks_) {
block_cursor_ = 0;
}
TimelineEventBlock* block = &blocks_[block_cursor_++];
block->Reset();
block->Open();
return block;
}
void TimelineEventPlatformRecorder::CompleteEvent(TimelineEvent* event) {
if (event == NULL) {
return;
}
ThreadBlockCompleteEvent(event);
}
} // namespace dart
#endif // defined(HOST_OS_WINDOWS) && !defined(PRODUCT)