blob: 615eebb515b7453fd9e73b1de461134dbb08b108 [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <fuchsia/perfmon/cpu/cpp/fidl.h>
#include "garnet/lib/perfmon/controller.h"
#include "src/lib/fxl/memory/weak_ptr.h"
namespace perfmon {
namespace internal {
using ::fuchsia::perfmon::cpu::ControllerSyncPtr;
class ControllerImpl final : public Controller {
ControllerImpl(ControllerSyncPtr controller_ptr, uint32_t num_traces,
uint32_t buffer_size_in_pages, Config config);
~ControllerImpl() override;
bool Start() override;
// It is ok to call this while stopped.
void Stop() override;
bool started() const override { return started_; }
uint32_t num_traces() const override { return num_traces_; }
const Config& config() const override { return config_; }
bool GetBufferHandle(const std::string& name, uint32_t trace_num, zx::vmo* out_vmo) override;
std::unique_ptr<Reader> GetReader() override;
bool Stage();
void Terminate();
void Reset();
ControllerSyncPtr controller_ptr_;
// The number of traces we will collect (== #cpus for now).
uint32_t num_traces_;
// This is the actual buffer size we use, in pages.
const uint32_t buffer_size_in_pages_;
const Config config_;
// Set to true by |Start()|, false by |Stop()|.
bool started_ = false;
fxl::WeakPtrFactory<Controller> weak_ptr_factory_;
} // namespace internal
} // namespace perfmon