content/browser/cache_storage/cache_storage_operation.cc

// Copyright 2016 The Chromium 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 "content/browser/cache_storage/cache_storage_operation.h"

#include "content/browser/cache_storage/cache_storage_histogram_macros.h"

namespace content {

namespace {
const int kNumSecondsForSlowOperation = 10;
}

CacheStorageOperation::CacheStorageOperation(
    const base::Closure& closure,
    CacheStorageSchedulerClient client_type,
    scoped_refptr<base::SingleThreadTaskRunner> task_runner)
    : closure_(closure),
      creation_ticks_(base::TimeTicks::Now()),
      client_type_(client_type),
      task_runner_(std::move(task_runner)),
      weak_ptr_factory_(this) {}

CacheStorageOperation::~CacheStorageOperation() {
  CACHE_STORAGE_SCHEDULER_UMA(TIMES, "OperationDuration", client_type_,
                              base::TimeTicks::Now() - start_ticks_);

  if (!was_slow_)
    CACHE_STORAGE_SCHEDULER_UMA(BOOLEAN, "IsOperationSlow", client_type_,
                                false);
}

void CacheStorageOperation::Run() {
  start_ticks_ = base::TimeTicks::Now();

  task_runner_->PostDelayedTask(
      FROM_HERE, base::Bind(&CacheStorageOperation::NotifyOperationSlow,
                            weak_ptr_factory_.GetWeakPtr()),
      base::TimeDelta::FromSeconds(kNumSecondsForSlowOperation));
  closure_.Run();
}

void CacheStorageOperation::NotifyOperationSlow() {
  was_slow_ = true;
  CACHE_STORAGE_SCHEDULER_UMA(BOOLEAN, "IsOperationSlow", client_type_, true);
}

}  // namespace content