| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "src/tracing/core/trace_writer_for_testing.h" |
| |
| #include "perfetto/base/logging.h" |
| #include "perfetto/base/utils.h" |
| |
| #include "perfetto/protozero/message.h" |
| |
| #include "perfetto/trace/trace_packet.pbzero.h" |
| |
| namespace perfetto { |
| |
| TraceWriterForTesting::TraceWriterForTesting() |
| : delegate_(static_cast<size_t>(base::kPageSize), |
| static_cast<size_t>(base::kPageSize)), |
| stream_(&delegate_) { |
| delegate_.set_writer(&stream_); |
| cur_packet_.reset(new protos::pbzero::TracePacket()); |
| cur_packet_->Finalize(); // To avoid the DCHECK in NewTracePacket(). |
| } |
| |
| TraceWriterForTesting::~TraceWriterForTesting() {} |
| |
| void TraceWriterForTesting::Flush(std::function<void()> callback) { |
| // Flush() cannot be called in the middle of a TracePacket. |
| PERFETTO_CHECK(cur_packet_->is_finalized()); |
| |
| if (callback) |
| callback(); |
| } |
| |
| std::unique_ptr<protos::TracePacket> TraceWriterForTesting::ParseProto() { |
| PERFETTO_CHECK(cur_packet_->is_finalized()); |
| auto packet = std::unique_ptr<protos::TracePacket>(new protos::TracePacket()); |
| std::vector<uint8_t> buffer = delegate_.StitchSlices(); |
| if (!packet->ParseFromArray(buffer.data(), static_cast<int>(buffer.size()))) |
| return nullptr; |
| return packet; |
| } |
| |
| TraceWriterForTesting::TracePacketHandle |
| TraceWriterForTesting::NewTracePacket() { |
| // If we hit this, the caller is calling NewTracePacket() without having |
| // finalized the previous packet. |
| PERFETTO_DCHECK(cur_packet_->is_finalized()); |
| cur_packet_->Reset(&stream_); |
| return TraceWriter::TracePacketHandle(cur_packet_.get()); |
| } |
| |
| WriterID TraceWriterForTesting::writer_id() const { |
| return 0; |
| } |
| |
| uint64_t TraceWriterForTesting::written() const { |
| return 0; |
| } |
| |
| } // namespace perfetto |