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// Copyright (c) 2013 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 "chrome/browser/chromeos/extensions/install_limiter.h"
#include <string>
#include "base/bind.h"
#include "base/files/file_util.h"
#include "base/threading/sequenced_worker_pool.h"
#include "chrome/browser/chromeos/extensions/install_limiter_factory.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "extensions/browser/notification_types.h"
using content::BrowserThread;
namespace {
int64 GetFileSizeOnBlockingPool(const base::FilePath& file) {
DCHECK(BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
// Get file size. In case of error, sets 0 as file size to let the installer
// run and fail.
int64 size;
return base::GetFileSize(file, &size) ? size : 0;
}
} // namespace
namespace extensions {
////////////////////////////////////////////////////////////////////////////////
// InstallLimiter::DeferredInstall
InstallLimiter::DeferredInstall::DeferredInstall(
const scoped_refptr<CrxInstaller>& installer,
const base::FilePath& path)
: installer(installer),
path(path) {
}
InstallLimiter::DeferredInstall::~DeferredInstall() {
}
////////////////////////////////////////////////////////////////////////////////
// InstallLimiter
InstallLimiter* InstallLimiter::Get(Profile* profile) {
return InstallLimiterFactory::GetForProfile(profile);
}
InstallLimiter::InstallLimiter() : disabled_for_test_(false) {
}
InstallLimiter::~InstallLimiter() {
}
void InstallLimiter::DisableForTest() {
disabled_for_test_ = true;
}
void InstallLimiter::Add(const scoped_refptr<CrxInstaller>& installer,
const base::FilePath& path) {
// No deferred installs when disabled for test.
if (disabled_for_test_) {
installer->InstallCrx(path);
return;
}
base::PostTaskAndReplyWithResult(
BrowserThread::GetBlockingPool(),
FROM_HERE,
base::Bind(&GetFileSizeOnBlockingPool, path),
base::Bind(&InstallLimiter::AddWithSize, AsWeakPtr(), installer, path));
}
void InstallLimiter::AddWithSize(
const scoped_refptr<CrxInstaller>& installer,
const base::FilePath& path,
int64 size) {
const int64 kBigAppSizeThreshold = 1048576; // 1MB
if (size <= kBigAppSizeThreshold) {
RunInstall(installer, path);
// Stop wait timer and let install notification drive deferred installs.
wait_timer_.Stop();
return;
}
deferred_installs_.push(DeferredInstall(installer, path));
// When there are no running installs, wait a bit before running deferred
// installs to allow small app install to take precedence, especially when a
// big app is the first one in the list.
if (running_installers_.empty() && !wait_timer_.IsRunning()) {
const int kMaxWaitTimeInMs = 5000; // 5 seconds.
wait_timer_.Start(
FROM_HERE,
base::TimeDelta::FromMilliseconds(kMaxWaitTimeInMs),
this, &InstallLimiter::CheckAndRunDeferrredInstalls);
}
}
void InstallLimiter::CheckAndRunDeferrredInstalls() {
if (deferred_installs_.empty() || !running_installers_.empty())
return;
const DeferredInstall& deferred = deferred_installs_.front();
RunInstall(deferred.installer, deferred.path);
deferred_installs_.pop();
}
void InstallLimiter::RunInstall(const scoped_refptr<CrxInstaller>& installer,
const base::FilePath& path) {
registrar_.Add(this,
extensions::NOTIFICATION_CRX_INSTALLER_DONE,
content::Source<CrxInstaller>(installer.get()));
installer->InstallCrx(path);
running_installers_.insert(installer);
}
void InstallLimiter::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(extensions::NOTIFICATION_CRX_INSTALLER_DONE, type);
registrar_.Remove(this, extensions::NOTIFICATION_CRX_INSTALLER_DONE, source);
const scoped_refptr<CrxInstaller> installer =
content::Source<extensions::CrxInstaller>(source).ptr();
running_installers_.erase(installer);
CheckAndRunDeferrredInstalls();
}
} // namespace extensions
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